Home / 5,920.80-8,881.20-4,292.70

Finding the Fourth Proportional to 5,920.80, 8,881.20 and 4,292.70

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Solution

The fourth proportional to 5,920.80, 8,881.20 and 4,292.70 is: 6,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.80 : 8,881.20 = 4,292.70 : x
  2. Step 2: Convert to fraction form
    5,920.80/8,881.20 = 4,292.70/x
  3. Step 3: Cross multiply
    5,920.80x = 8,881.20 × 4,292.70
  4. Step 4: Simplify right side
    5,920.80x = 38,124,327.24
  5. Step 5: Solve for x
    x = 38,124,327.24/5,920.80
  6. Step 6: Final answer
    x = 6,439.05

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Similar ratio
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1.5x scale

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.