Home / 1,257.30-1,735.92-962.04

Finding the Fourth Proportional to 1,257.30, 1,735.92 and 962.04

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Solution

The fourth proportional to 1,257.30, 1,735.92 and 962.04 is: 1,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.30 : 1,735.92 = 962.04 : x
  2. Step 2: Convert to fraction form
    1,257.30/1,735.92 = 962.04/x
  3. Step 3: Cross multiply
    1,257.30x = 1,735.92 × 962.04
  4. Step 4: Simplify right side
    1,257.30x = 1,670,024.48
  5. Step 5: Solve for x
    x = 1,670,024.48/1,257.30
  6. Step 6: Final answer
    x = 1,328.26

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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.