Home / 2,453.29-3,680.55-721.91

Finding the Fourth Proportional to 2,453.29, 3,680.55 and 721.91

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Solution

The fourth proportional to 2,453.29, 3,680.55 and 721.91 is: 1,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.29 : 3,680.55 = 721.91 : x
  2. Step 2: Convert to fraction form
    2,453.29/3,680.55 = 721.91/x
  3. Step 3: Cross multiply
    2,453.29x = 3,680.55 × 721.91
  4. Step 4: Simplify right side
    2,453.29x = 2,657,025.85
  5. Step 5: Solve for x
    x = 2,657,025.85/2,453.29
  6. Step 6: Final answer
    x = 1,083.05

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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.