Home / 5,115.27-7,672.89-1,417.51

Finding the Fourth Proportional to 5,115.27, 7,672.89 and 1,417.51

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Solution

The fourth proportional to 5,115.27, 7,672.89 and 1,417.51 is: 2,126.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.27 : 7,672.89 = 1,417.51 : x
  2. Step 2: Convert to fraction form
    5,115.27/7,672.89 = 1,417.51/x
  3. Step 3: Cross multiply
    5,115.27x = 7,672.89 × 1,417.51
  4. Step 4: Simplify right side
    5,115.27x = 10,876,398.30
  5. Step 5: Solve for x
    x = 10,876,398.30/5,115.27
  6. Step 6: Final answer
    x = 2,126.26

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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.