Home / 5,489.20-8,233.80-3,520.90

Finding the Fourth Proportional to 5,489.20, 8,233.80 and 3,520.90

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Solution

The fourth proportional to 5,489.20, 8,233.80 and 3,520.90 is: 5,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.20 : 8,233.80 = 3,520.90 : x
  2. Step 2: Convert to fraction form
    5,489.20/8,233.80 = 3,520.90/x
  3. Step 3: Cross multiply
    5,489.20x = 8,233.80 × 3,520.90
  4. Step 4: Simplify right side
    5,489.20x = 28,990,386.42
  5. Step 5: Solve for x
    x = 28,990,386.42/5,489.20
  6. Step 6: Final answer
    x = 5,281.35

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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.