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Finding the Fourth Proportional to 6,379.70, 8,801.15 and 4,253.17

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Solution

The fourth proportional to 6,379.70, 8,801.15 and 4,253.17 is: 5,867.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.70 : 8,801.15 = 4,253.17 : x
  2. Step 2: Convert to fraction form
    6,379.70/8,801.15 = 4,253.17/x
  3. Step 3: Cross multiply
    6,379.70x = 8,801.15 × 4,253.17
  4. Step 4: Simplify right side
    6,379.70x = 37,432,743.88
  5. Step 5: Solve for x
    x = 37,432,743.88/6,379.70
  6. Step 6: Final answer
    x = 5,867.47

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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.