Home / 5,419.61-7,479.09-3,061.70

Finding the Fourth Proportional to 5,419.61, 7,479.09 and 3,061.70

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Solution

The fourth proportional to 5,419.61, 7,479.09 and 3,061.70 is: 4,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.61 : 7,479.09 = 3,061.70 : x
  2. Step 2: Convert to fraction form
    5,419.61/7,479.09 = 3,061.70/x
  3. Step 3: Cross multiply
    5,419.61x = 7,479.09 × 3,061.70
  4. Step 4: Simplify right side
    5,419.61x = 22,898,692.46
  5. Step 5: Solve for x
    x = 22,898,692.46/5,419.61
  6. Step 6: Final answer
    x = 4,225.16

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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.