Home / 5,139.46-7,708.92-1,441.95

Finding the Fourth Proportional to 5,139.46, 7,708.92 and 1,441.95

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Solution

The fourth proportional to 5,139.46, 7,708.92 and 1,441.95 is: 2,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.46 : 7,708.92 = 1,441.95 : x
  2. Step 2: Convert to fraction form
    5,139.46/7,708.92 = 1,441.95/x
  3. Step 3: Cross multiply
    5,139.46x = 7,708.92 × 1,441.95
  4. Step 4: Simplify right side
    5,139.46x = 11,115,877.19
  5. Step 5: Solve for x
    x = 11,115,877.19/5,139.46
  6. Step 6: Final answer
    x = 2,162.85

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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.