Home / 5,081.60-7,612.48-4,531.20

Finding the Fourth Proportional to 5,081.60, 7,612.48 and 4,531.20

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Solution

The fourth proportional to 5,081.60, 7,612.48 and 4,531.20 is: 6,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.60 : 7,612.48 = 4,531.20 : x
  2. Step 2: Convert to fraction form
    5,081.60/7,612.48 = 4,531.20/x
  3. Step 3: Cross multiply
    5,081.60x = 7,612.48 × 4,531.20
  4. Step 4: Simplify right side
    5,081.60x = 34,493,669.38
  5. Step 5: Solve for x
    x = 34,493,669.38/5,081.60
  6. Step 6: Final answer
    x = 6,787.95

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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.