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Finding the Fourth Proportional to 1,175.38, 1,622.72 and 733.88

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Solution

The fourth proportional to 1,175.38, 1,622.72 and 733.88 is: 1,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.38 : 1,622.72 = 733.88 : x
  2. Step 2: Convert to fraction form
    1,175.38/1,622.72 = 733.88/x
  3. Step 3: Cross multiply
    1,175.38x = 1,622.72 × 733.88
  4. Step 4: Simplify right side
    1,175.38x = 1,190,881.75
  5. Step 5: Solve for x
    x = 1,190,881.75/1,175.38
  6. Step 6: Final answer
    x = 1,013.19

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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.