Home / 8,106.85-12,160.28-2,560.76

Finding the Fourth Proportional to 8,106.85, 12,160.28 and 2,560.76

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Solution

The fourth proportional to 8,106.85, 12,160.28 and 2,560.76 is: 3,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.85 : 12,160.28 = 2,560.76 : x
  2. Step 2: Convert to fraction form
    8,106.85/12,160.28 = 2,560.76/x
  3. Step 3: Cross multiply
    8,106.85x = 12,160.28 × 2,560.76
  4. Step 4: Simplify right side
    8,106.85x = 31,139,558.61
  5. Step 5: Solve for x
    x = 31,139,558.61/8,106.85
  6. Step 6: Final answer
    x = 3,841.14

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Similar ratio
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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.