Home / 2,691.64-4,034.27-1,521.15

Finding the Fourth Proportional to 2,691.64, 4,034.27 and 1,521.15

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Solution

The fourth proportional to 2,691.64, 4,034.27 and 1,521.15 is: 2,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.64 : 4,034.27 = 1,521.15 : x
  2. Step 2: Convert to fraction form
    2,691.64/4,034.27 = 1,521.15/x
  3. Step 3: Cross multiply
    2,691.64x = 4,034.27 × 1,521.15
  4. Step 4: Simplify right side
    2,691.64x = 6,136,718.48
  5. Step 5: Solve for x
    x = 6,136,718.48/2,691.64
  6. Step 6: Final answer
    x = 2,279.92

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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.