Home / 5,456.60-8,184.90-4,909.85

Finding the Fourth Proportional to 5,456.60, 8,184.90 and 4,909.85

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Solution

The fourth proportional to 5,456.60, 8,184.90 and 4,909.85 is: 7,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.60 : 8,184.90 = 4,909.85 : x
  2. Step 2: Convert to fraction form
    5,456.60/8,184.90 = 4,909.85/x
  3. Step 3: Cross multiply
    5,456.60x = 8,184.90 × 4,909.85
  4. Step 4: Simplify right side
    5,456.60x = 40,186,631.27
  5. Step 5: Solve for x
    x = 40,186,631.27/5,456.60
  6. Step 6: Final answer
    x = 7,364.78

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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.