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Finding the Fourth Proportional to 2,995.87, 4,493.80 and 1,147.55

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Solution

The fourth proportional to 2,995.87, 4,493.80 and 1,147.55 is: 1,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.87 : 4,493.80 = 1,147.55 : x
  2. Step 2: Convert to fraction form
    2,995.87/4,493.80 = 1,147.55/x
  3. Step 3: Cross multiply
    2,995.87x = 4,493.80 × 1,147.55
  4. Step 4: Simplify right side
    2,995.87x = 5,156,867.66
  5. Step 5: Solve for x
    x = 5,156,867.66/2,995.87
  6. Step 6: Final answer
    x = 1,721.33

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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.