Home / 7,152.19-9,870.60-3,965.80

Finding the Fourth Proportional to 7,152.19, 9,870.60 and 3,965.80

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Solution

The fourth proportional to 7,152.19, 9,870.60 and 3,965.80 is: 5,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.19 : 9,870.60 = 3,965.80 : x
  2. Step 2: Convert to fraction form
    7,152.19/9,870.60 = 3,965.80/x
  3. Step 3: Cross multiply
    7,152.19x = 9,870.60 × 3,965.80
  4. Step 4: Simplify right side
    7,152.19x = 39,144,825.48
  5. Step 5: Solve for x
    x = 39,144,825.48/7,152.19
  6. Step 6: Final answer
    x = 5,473.13

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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.