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Finding the Fourth Proportional to 1,236.04, 1,704.92 and 738.29

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Solution

The fourth proportional to 1,236.04, 1,704.92 and 738.29 is: 1,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.04 : 1,704.92 = 738.29 : x
  2. Step 2: Convert to fraction form
    1,236.04/1,704.92 = 738.29/x
  3. Step 3: Cross multiply
    1,236.04x = 1,704.92 × 738.29
  4. Step 4: Simplify right side
    1,236.04x = 1,258,725.96
  5. Step 5: Solve for x
    x = 1,258,725.96/1,236.04
  6. Step 6: Final answer
    x = 1,018.36

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Double scale
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1.5x scale

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.