Home / 1,631.49-2,251.55-932.87

Finding the Fourth Proportional to 1,631.49, 2,251.55 and 932.87

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Solution

The fourth proportional to 1,631.49, 2,251.55 and 932.87 is: 1,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.49 : 2,251.55 = 932.87 : x
  2. Step 2: Convert to fraction form
    1,631.49/2,251.55 = 932.87/x
  3. Step 3: Cross multiply
    1,631.49x = 2,251.55 × 932.87
  4. Step 4: Simplify right side
    1,631.49x = 2,100,387.53
  5. Step 5: Solve for x
    x = 2,100,387.53/1,631.49
  6. Step 6: Final answer
    x = 1,287.40

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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.