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Finding the Fourth Proportional to 1,452.71, 2,003.86 and 1,157.87

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Solution

The fourth proportional to 1,452.71, 2,003.86 and 1,157.87 is: 1,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.71 : 2,003.86 = 1,157.87 : x
  2. Step 2: Convert to fraction form
    1,452.71/2,003.86 = 1,157.87/x
  3. Step 3: Cross multiply
    1,452.71x = 2,003.86 × 1,157.87
  4. Step 4: Simplify right side
    1,452.71x = 2,320,209.38
  5. Step 5: Solve for x
    x = 2,320,209.38/1,452.71
  6. Step 6: Final answer
    x = 1,597.16

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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.