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Finding the Fourth Proportional to 7,104.78, 10,657.17 and 2,486.70

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Solution

The fourth proportional to 7,104.78, 10,657.17 and 2,486.70 is: 3,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.78 : 10,657.17 = 2,486.70 : x
  2. Step 2: Convert to fraction form
    7,104.78/10,657.17 = 2,486.70/x
  3. Step 3: Cross multiply
    7,104.78x = 10,657.17 × 2,486.70
  4. Step 4: Simplify right side
    7,104.78x = 26,501,184.64
  5. Step 5: Solve for x
    x = 26,501,184.64/7,104.78
  6. Step 6: Final answer
    x = 3,730.05

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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.