Home / 1,648.23-2,275.08-1,089.19

Finding the Fourth Proportional to 1,648.23, 2,275.08 and 1,089.19

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Solution

The fourth proportional to 1,648.23, 2,275.08 and 1,089.19 is: 1,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.23 : 2,275.08 = 1,089.19 : x
  2. Step 2: Convert to fraction form
    1,648.23/2,275.08 = 1,089.19/x
  3. Step 3: Cross multiply
    1,648.23x = 2,275.08 × 1,089.19
  4. Step 4: Simplify right side
    1,648.23x = 2,477,994.39
  5. Step 5: Solve for x
    x = 2,477,994.39/1,648.23
  6. Step 6: Final answer
    x = 1,503.43

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,649.23, 2,276.46 and 1,090.19
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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.