Home / 1,454.67-2,183.40-724.77

Finding the Fourth Proportional to 1,454.67, 2,183.40 and 724.77

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Solution

The fourth proportional to 1,454.67, 2,183.40 and 724.77 is: 1,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.67 : 2,183.40 = 724.77 : x
  2. Step 2: Convert to fraction form
    1,454.67/2,183.40 = 724.77/x
  3. Step 3: Cross multiply
    1,454.67x = 2,183.40 × 724.77
  4. Step 4: Simplify right side
    1,454.67x = 1,582,462.82
  5. Step 5: Solve for x
    x = 1,582,462.82/1,454.67
  6. Step 6: Final answer
    x = 1,087.85

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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.