Home / 1,350.11-2,020.83-724.55

Finding the Fourth Proportional to 1,350.11, 2,020.83 and 724.55

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Solution

The fourth proportional to 1,350.11, 2,020.83 and 724.55 is: 1,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.11 : 2,020.83 = 724.55 : x
  2. Step 2: Convert to fraction form
    1,350.11/2,020.83 = 724.55/x
  3. Step 3: Cross multiply
    1,350.11x = 2,020.83 × 724.55
  4. Step 4: Simplify right side
    1,350.11x = 1,464,182.27
  5. Step 5: Solve for x
    x = 1,464,182.27/1,350.11
  6. Step 6: Final answer
    x = 1,084.50

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1.5x scale

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.