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Finding the Fourth Proportional to 1,452.88, 2,005.29 and 955.57

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Solution

The fourth proportional to 1,452.88, 2,005.29 and 955.57 is: 1,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.88 : 2,005.29 = 955.57 : x
  2. Step 2: Convert to fraction form
    1,452.88/2,005.29 = 955.57/x
  3. Step 3: Cross multiply
    1,452.88x = 2,005.29 × 955.57
  4. Step 4: Simplify right side
    1,452.88x = 1,916,184.94
  5. Step 5: Solve for x
    x = 1,916,184.94/1,452.88
  6. Step 6: Final answer
    x = 1,318.89

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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.