Home / 1,614.69-2,229.34-1,240.97

Finding the Fourth Proportional to 1,614.69, 2,229.34 and 1,240.97

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Solution

The fourth proportional to 1,614.69, 2,229.34 and 1,240.97 is: 1,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.69 : 2,229.34 = 1,240.97 : x
  2. Step 2: Convert to fraction form
    1,614.69/2,229.34 = 1,240.97/x
  3. Step 3: Cross multiply
    1,614.69x = 2,229.34 × 1,240.97
  4. Step 4: Simplify right side
    1,614.69x = 2,766,546.53
  5. Step 5: Solve for x
    x = 2,766,546.53/1,614.69
  6. Step 6: Final answer
    x = 1,713.36

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Half scale
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Double scale
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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.