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Finding the Fourth Proportional to 5,612.76, 7,736.79 and 3,841.29

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Solution

The fourth proportional to 5,612.76, 7,736.79 and 3,841.29 is: 5,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.76 : 7,736.79 = 3,841.29 : x
  2. Step 2: Convert to fraction form
    5,612.76/7,736.79 = 3,841.29/x
  3. Step 3: Cross multiply
    5,612.76x = 7,736.79 × 3,841.29
  4. Step 4: Simplify right side
    5,612.76x = 29,719,254.06
  5. Step 5: Solve for x
    x = 29,719,254.06/5,612.76
  6. Step 6: Final answer
    x = 5,294.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.