Home / 1,741.28-2,401.92-1,120.64

Finding the Fourth Proportional to 1,741.28, 2,401.92 and 1,120.64

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Solution

The fourth proportional to 1,741.28, 2,401.92 and 1,120.64 is: 1,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.28 : 2,401.92 = 1,120.64 : x
  2. Step 2: Convert to fraction form
    1,741.28/2,401.92 = 1,120.64/x
  3. Step 3: Cross multiply
    1,741.28x = 2,401.92 × 1,120.64
  4. Step 4: Simplify right side
    1,741.28x = 2,691,687.63
  5. Step 5: Solve for x
    x = 2,691,687.63/1,741.28
  6. Step 6: Final answer
    x = 1,545.81

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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.