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Finding the Fourth Proportional to 6,357.69, 8,773.92 and 3,839.74

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Solution

The fourth proportional to 6,357.69, 8,773.92 and 3,839.74 is: 5,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,357.69 : 8,773.92 = 3,839.74 : x
  2. Step 2: Convert to fraction form
    6,357.69/8,773.92 = 3,839.74/x
  3. Step 3: Cross multiply
    6,357.69x = 8,773.92 × 3,839.74
  4. Step 4: Simplify right side
    6,357.69x = 33,689,549.65
  5. Step 5: Solve for x
    x = 33,689,549.65/6,357.69
  6. Step 6: Final answer
    x = 5,299.02

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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.