Home / 1,516.64-2,275.97-1,331.06

Finding the Fourth Proportional to 1,516.64, 2,275.97 and 1,331.06

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Solution

The fourth proportional to 1,516.64, 2,275.97 and 1,331.06 is: 1,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.64 : 2,275.97 = 1,331.06 : x
  2. Step 2: Convert to fraction form
    1,516.64/2,275.97 = 1,331.06/x
  3. Step 3: Cross multiply
    1,516.64x = 2,275.97 × 1,331.06
  4. Step 4: Simplify right side
    1,516.64x = 3,029,434.59
  5. Step 5: Solve for x
    x = 3,029,434.59/1,516.64
  6. Step 6: Final answer
    x = 1,997.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.