Home / 1,239.28-1,708.34-944.04

Finding the Fourth Proportional to 1,239.28, 1,708.34 and 944.04

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Solution

The fourth proportional to 1,239.28, 1,708.34 and 944.04 is: 1,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.28 : 1,708.34 = 944.04 : x
  2. Step 2: Convert to fraction form
    1,239.28/1,708.34 = 944.04/x
  3. Step 3: Cross multiply
    1,239.28x = 1,708.34 × 944.04
  4. Step 4: Simplify right side
    1,239.28x = 1,612,741.29
  5. Step 5: Solve for x
    x = 1,612,741.29/1,239.28
  6. Step 6: Final answer
    x = 1,301.35

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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.