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Finding the Fourth Proportional to 8,335.80, 12,502.32 and 2,789.10

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Solution

The fourth proportional to 8,335.80, 12,502.32 and 2,789.10 is: 4,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.80 : 12,502.32 = 2,789.10 : x
  2. Step 2: Convert to fraction form
    8,335.80/12,502.32 = 2,789.10/x
  3. Step 3: Cross multiply
    8,335.80x = 12,502.32 × 2,789.10
  4. Step 4: Simplify right side
    8,335.80x = 34,870,220.71
  5. Step 5: Solve for x
    x = 34,870,220.71/8,335.80
  6. Step 6: Final answer
    x = 4,183.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.