Home / 3,712.27-5,123.78-2,314.75

Finding the Fourth Proportional to 3,712.27, 5,123.78 and 2,314.75

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Solution

The fourth proportional to 3,712.27, 5,123.78 and 2,314.75 is: 3,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.27 : 5,123.78 = 2,314.75 : x
  2. Step 2: Convert to fraction form
    3,712.27/5,123.78 = 2,314.75/x
  3. Step 3: Cross multiply
    3,712.27x = 5,123.78 × 2,314.75
  4. Step 4: Simplify right side
    3,712.27x = 11,860,269.76
  5. Step 5: Solve for x
    x = 11,860,269.76/3,712.27
  6. Step 6: Final answer
    x = 3,194.88

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1.5x scale

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.