Home / 2,655.38-3,981.71-1,559.15

Finding the Fourth Proportional to 2,655.38, 3,981.71 and 1,559.15

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Solution

The fourth proportional to 2,655.38, 3,981.71 and 1,559.15 is: 2,337.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.38 : 3,981.71 = 1,559.15 : x
  2. Step 2: Convert to fraction form
    2,655.38/3,981.71 = 1,559.15/x
  3. Step 3: Cross multiply
    2,655.38x = 3,981.71 × 1,559.15
  4. Step 4: Simplify right side
    2,655.38x = 6,208,073.30
  5. Step 5: Solve for x
    x = 6,208,073.30/2,655.38
  6. Step 6: Final answer
    x = 2,337.92

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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.