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Finding the Fourth Proportional to 2,891.92, 4,337.88 and 1,837.48

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Solution

The fourth proportional to 2,891.92, 4,337.88 and 1,837.48 is: 2,756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.92 : 4,337.88 = 1,837.48 : x
  2. Step 2: Convert to fraction form
    2,891.92/4,337.88 = 1,837.48/x
  3. Step 3: Cross multiply
    2,891.92x = 4,337.88 × 1,837.48
  4. Step 4: Simplify right side
    2,891.92x = 7,970,767.74
  5. Step 5: Solve for x
    x = 7,970,767.74/2,891.92
  6. Step 6: Final answer
    x = 2,756.22

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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.