Home / 5,517.52-7,616.63-3,280.12

Finding the Fourth Proportional to 5,517.52, 7,616.63 and 3,280.12

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Solution

The fourth proportional to 5,517.52, 7,616.63 and 3,280.12 is: 4,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.52 : 7,616.63 = 3,280.12 : x
  2. Step 2: Convert to fraction form
    5,517.52/7,616.63 = 3,280.12/x
  3. Step 3: Cross multiply
    5,517.52x = 7,616.63 × 3,280.12
  4. Step 4: Simplify right side
    5,517.52x = 24,983,405.91
  5. Step 5: Solve for x
    x = 24,983,405.91/5,517.52
  6. Step 6: Final answer
    x = 4,528.02

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1.5x scale

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.