Home / 3,126.27-4,313.66-1,781.85

Finding the Fourth Proportional to 3,126.27, 4,313.66 and 1,781.85

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Solution

The fourth proportional to 3,126.27, 4,313.66 and 1,781.85 is: 2,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.27 : 4,313.66 = 1,781.85 : x
  2. Step 2: Convert to fraction form
    3,126.27/4,313.66 = 1,781.85/x
  3. Step 3: Cross multiply
    3,126.27x = 4,313.66 × 1,781.85
  4. Step 4: Simplify right side
    3,126.27x = 7,686,304.01
  5. Step 5: Solve for x
    x = 7,686,304.01/3,126.27
  6. Step 6: Final answer
    x = 2,458.62

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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.