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Finding the Fourth Proportional to 1,250.34, 1,726.29 and 957.12

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Solution

The fourth proportional to 1,250.34, 1,726.29 and 957.12 is: 1,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.34 : 1,726.29 = 957.12 : x
  2. Step 2: Convert to fraction form
    1,250.34/1,726.29 = 957.12/x
  3. Step 3: Cross multiply
    1,250.34x = 1,726.29 × 957.12
  4. Step 4: Simplify right side
    1,250.34x = 1,652,266.68
  5. Step 5: Solve for x
    x = 1,652,266.68/1,250.34
  6. Step 6: Final answer
    x = 1,321.45

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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.