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Finding the Fourth Proportional to 6,398.71, 8,830.05 and 3,566.09

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Solution

The fourth proportional to 6,398.71, 8,830.05 and 3,566.09 is: 4,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.71 : 8,830.05 = 3,566.09 : x
  2. Step 2: Convert to fraction form
    6,398.71/8,830.05 = 3,566.09/x
  3. Step 3: Cross multiply
    6,398.71x = 8,830.05 × 3,566.09
  4. Step 4: Simplify right side
    6,398.71x = 31,488,753.00
  5. Step 5: Solve for x
    x = 31,488,753.00/6,398.71
  6. Step 6: Final answer
    x = 4,921.11

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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.