Home / 7,648.30-10,555.08-4,292.19

Finding the Fourth Proportional to 7,648.30, 10,555.08 and 4,292.19

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Solution

The fourth proportional to 7,648.30, 10,555.08 and 4,292.19 is: 5,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.30 : 10,555.08 = 4,292.19 : x
  2. Step 2: Convert to fraction form
    7,648.30/10,555.08 = 4,292.19/x
  3. Step 3: Cross multiply
    7,648.30x = 10,555.08 × 4,292.19
  4. Step 4: Simplify right side
    7,648.30x = 45,304,408.83
  5. Step 5: Solve for x
    x = 45,304,408.83/7,648.30
  6. Step 6: Final answer
    x = 5,923.46

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Find fourth proportional to 3,824.15, 5,277.54 and 2,146.10
Half scale
Find fourth proportional to 15,296.60, 21,110.16 and 8,584.38
Double scale
Find fourth proportional to 7,649.30, 10,556.46 and 4,293.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.