Home / 5,621.20-8,436.96-2,849.80

Finding the Fourth Proportional to 5,621.20, 8,436.96 and 2,849.80

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Solution

The fourth proportional to 5,621.20, 8,436.96 and 2,849.80 is: 4,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.20 : 8,436.96 = 2,849.80 : x
  2. Step 2: Convert to fraction form
    5,621.20/8,436.96 = 2,849.80/x
  3. Step 3: Cross multiply
    5,621.20x = 8,436.96 × 2,849.80
  4. Step 4: Simplify right side
    5,621.20x = 24,043,648.61
  5. Step 5: Solve for x
    x = 24,043,648.61/5,621.20
  6. Step 6: Final answer
    x = 4,277.32

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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.