Home / 1,236.04-1,705.19-738.43

Finding the Fourth Proportional to 1,236.04, 1,705.19 and 738.43

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Solution

The fourth proportional to 1,236.04, 1,705.19 and 738.43 is: 1,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.04 : 1,705.19 = 738.43 : x
  2. Step 2: Convert to fraction form
    1,236.04/1,705.19 = 738.43/x
  3. Step 3: Cross multiply
    1,236.04x = 1,705.19 × 738.43
  4. Step 4: Simplify right side
    1,236.04x = 1,259,165.30
  5. Step 5: Solve for x
    x = 1,259,165.30/1,236.04
  6. Step 6: Final answer
    x = 1,018.71

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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.