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Finding the Fourth Proportional to 6,486.73, 8,949.02 and 4,789.29

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Solution

The fourth proportional to 6,486.73, 8,949.02 and 4,789.29 is: 6,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.73 : 8,949.02 = 4,789.29 : x
  2. Step 2: Convert to fraction form
    6,486.73/8,949.02 = 4,789.29/x
  3. Step 3: Cross multiply
    6,486.73x = 8,949.02 × 4,789.29
  4. Step 4: Simplify right side
    6,486.73x = 42,859,461.61
  5. Step 5: Solve for x
    x = 42,859,461.61/6,486.73
  6. Step 6: Final answer
    x = 6,607.25

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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.