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Finding the Fourth Proportional to 8,125.01, 12,180.22 and 2,856.31

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Solution

The fourth proportional to 8,125.01, 12,180.22 and 2,856.31 is: 4,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.01 : 12,180.22 = 2,856.31 : x
  2. Step 2: Convert to fraction form
    8,125.01/12,180.22 = 2,856.31/x
  3. Step 3: Cross multiply
    8,125.01x = 12,180.22 × 2,856.31
  4. Step 4: Simplify right side
    8,125.01x = 34,790,531.18
  5. Step 5: Solve for x
    x = 34,790,531.18/8,125.01
  6. Step 6: Final answer
    x = 4,281.91

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1.5x scale

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.