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Finding the Fourth Proportional to 8,155.65, 12,233.10 and 2,890.58

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Solution

The fourth proportional to 8,155.65, 12,233.10 and 2,890.58 is: 4,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.65 : 12,233.10 = 2,890.58 : x
  2. Step 2: Convert to fraction form
    8,155.65/12,233.10 = 2,890.58/x
  3. Step 3: Cross multiply
    8,155.65x = 12,233.10 × 2,890.58
  4. Step 4: Simplify right side
    8,155.65x = 35,360,754.20
  5. Step 5: Solve for x
    x = 35,360,754.20/8,155.65
  6. Step 6: Final answer
    x = 4,335.74

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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.