Home / 5,419.76-7,479.38-3,061.95

Finding the Fourth Proportional to 5,419.76, 7,479.38 and 3,061.95

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Solution

The fourth proportional to 5,419.76, 7,479.38 and 3,061.95 is: 4,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.76 : 7,479.38 = 3,061.95 : x
  2. Step 2: Convert to fraction form
    5,419.76/7,479.38 = 3,061.95/x
  3. Step 3: Cross multiply
    5,419.76x = 7,479.38 × 3,061.95
  4. Step 4: Simplify right side
    5,419.76x = 22,901,472.28
  5. Step 5: Solve for x
    x = 22,901,472.28/5,419.76
  6. Step 6: Final answer
    x = 4,225.55

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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.