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Finding the Fourth Proportional to 6,279.62, 8,663.64 and 3,626.47

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Solution

The fourth proportional to 6,279.62, 8,663.64 and 3,626.47 is: 5,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.62 : 8,663.64 = 3,626.47 : x
  2. Step 2: Convert to fraction form
    6,279.62/8,663.64 = 3,626.47/x
  3. Step 3: Cross multiply
    6,279.62x = 8,663.64 × 3,626.47
  4. Step 4: Simplify right side
    6,279.62x = 31,418,387.23
  5. Step 5: Solve for x
    x = 31,418,387.23/6,279.62
  6. Step 6: Final answer
    x = 5,003.23

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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.