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Finding the Fourth Proportional to 1,157.46, 1,736.20 and 834.88

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Solution

The fourth proportional to 1,157.46, 1,736.20 and 834.88 is: 1,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.46 : 1,736.20 = 834.88 : x
  2. Step 2: Convert to fraction form
    1,157.46/1,736.20 = 834.88/x
  3. Step 3: Cross multiply
    1,157.46x = 1,736.20 × 834.88
  4. Step 4: Simplify right side
    1,157.46x = 1,449,518.66
  5. Step 5: Solve for x
    x = 1,449,518.66/1,157.46
  6. Step 6: Final answer
    x = 1,252.33

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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.