Home / 5,621.40-8,432.10-3,773.79

Finding the Fourth Proportional to 5,621.40, 8,432.10 and 3,773.79

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Solution

The fourth proportional to 5,621.40, 8,432.10 and 3,773.79 is: 5,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.40 : 8,432.10 = 3,773.79 : x
  2. Step 2: Convert to fraction form
    5,621.40/8,432.10 = 3,773.79/x
  3. Step 3: Cross multiply
    5,621.40x = 8,432.10 × 3,773.79
  4. Step 4: Simplify right side
    5,621.40x = 31,820,974.66
  5. Step 5: Solve for x
    x = 31,820,974.66/5,621.40
  6. Step 6: Final answer
    x = 5,660.69

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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.