Home / 3,127.38-4,691.70-1,396

Finding the Fourth Proportional to 3,127.38, 4,691.70 and 1,396

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Solution

The fourth proportional to 3,127.38, 4,691.70 and 1,396 is: 2,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.38 : 4,691.70 = 1,396 : x
  2. Step 2: Convert to fraction form
    3,127.38/4,691.70 = 1,396/x
  3. Step 3: Cross multiply
    3,127.38x = 4,691.70 × 1,396
  4. Step 4: Simplify right side
    3,127.38x = 6,549,613.20
  5. Step 5: Solve for x
    x = 6,549,613.20/3,127.38
  6. Step 6: Final answer
    x = 2,094.28

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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.