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Finding the Fourth Proportional to 6,350.24, 8,764.53 and 3,990.71

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Solution

The fourth proportional to 6,350.24, 8,764.53 and 3,990.71 is: 5,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,350.24 : 8,764.53 = 3,990.71 : x
  2. Step 2: Convert to fraction form
    6,350.24/8,764.53 = 3,990.71/x
  3. Step 3: Cross multiply
    6,350.24x = 8,764.53 × 3,990.71
  4. Step 4: Simplify right side
    6,350.24x = 34,976,697.52
  5. Step 5: Solve for x
    x = 34,976,697.52/6,350.24
  6. Step 6: Final answer
    x = 5,507.93

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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.