Home / 1,341.28-2,012.53-724.33

Finding the Fourth Proportional to 1,341.28, 2,012.53 and 724.33

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Solution

The fourth proportional to 1,341.28, 2,012.53 and 724.33 is: 1,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.28 : 2,012.53 = 724.33 : x
  2. Step 2: Convert to fraction form
    1,341.28/2,012.53 = 724.33/x
  3. Step 3: Cross multiply
    1,341.28x = 2,012.53 × 724.33
  4. Step 4: Simplify right side
    1,341.28x = 1,457,735.85
  5. Step 5: Solve for x
    x = 1,457,735.85/1,341.28
  6. Step 6: Final answer
    x = 1,086.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.