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Finding the Fourth Proportional to 5,589.92, 8,388.12 and 5,289.68

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Solution

The fourth proportional to 5,589.92, 8,388.12 and 5,289.68 is: 7,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.92 : 8,388.12 = 5,289.68 : x
  2. Step 2: Convert to fraction form
    5,589.92/8,388.12 = 5,289.68/x
  3. Step 3: Cross multiply
    5,589.92x = 8,388.12 × 5,289.68
  4. Step 4: Simplify right side
    5,589.92x = 44,370,470.60
  5. Step 5: Solve for x
    x = 44,370,470.60/5,589.92
  6. Step 6: Final answer
    x = 7,937.59

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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.