Home / 1,252.30-1,729.11-957.05

Finding the Fourth Proportional to 1,252.30, 1,729.11 and 957.05

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Solution

The fourth proportional to 1,252.30, 1,729.11 and 957.05 is: 1,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.30 : 1,729.11 = 957.05 : x
  2. Step 2: Convert to fraction form
    1,252.30/1,729.11 = 957.05/x
  3. Step 3: Cross multiply
    1,252.30x = 1,729.11 × 957.05
  4. Step 4: Simplify right side
    1,252.30x = 1,654,844.73
  5. Step 5: Solve for x
    x = 1,654,844.73/1,252.30
  6. Step 6: Final answer
    x = 1,321.44

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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.