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Finding the Fourth Proportional to 6,381.79, 8,808.31 and 3,730.73

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Solution

The fourth proportional to 6,381.79, 8,808.31 and 3,730.73 is: 5,149.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.79 : 8,808.31 = 3,730.73 : x
  2. Step 2: Convert to fraction form
    6,381.79/8,808.31 = 3,730.73/x
  3. Step 3: Cross multiply
    6,381.79x = 8,808.31 × 3,730.73
  4. Step 4: Simplify right side
    6,381.79x = 32,861,386.99
  5. Step 5: Solve for x
    x = 32,861,386.99/6,381.79
  6. Step 6: Final answer
    x = 5,149.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.