Home / 3,938.14-5,906.40-1,565.92

Finding the Fourth Proportional to 3,938.14, 5,906.40 and 1,565.92

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Solution

The fourth proportional to 3,938.14, 5,906.40 and 1,565.92 is: 2,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.14 : 5,906.40 = 1,565.92 : x
  2. Step 2: Convert to fraction form
    3,938.14/5,906.40 = 1,565.92/x
  3. Step 3: Cross multiply
    3,938.14x = 5,906.40 × 1,565.92
  4. Step 4: Simplify right side
    3,938.14x = 9,248,949.89
  5. Step 5: Solve for x
    x = 9,248,949.89/3,938.14
  6. Step 6: Final answer
    x = 2,348.56

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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.