Home / 5,621.76-8,439.84-4,092.48

Finding the Fourth Proportional to 5,621.76, 8,439.84 and 4,092.48

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Solution

The fourth proportional to 5,621.76, 8,439.84 and 4,092.48 is: 6,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.76 : 8,439.84 = 4,092.48 : x
  2. Step 2: Convert to fraction form
    5,621.76/8,439.84 = 4,092.48/x
  3. Step 3: Cross multiply
    5,621.76x = 8,439.84 × 4,092.48
  4. Step 4: Simplify right side
    5,621.76x = 34,539,876.40
  5. Step 5: Solve for x
    x = 34,539,876.40/5,621.76
  6. Step 6: Final answer
    x = 6,143.96

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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.