Home / 3,621.29-5,431.49-1,155.91

Finding the Fourth Proportional to 3,621.29, 5,431.49 and 1,155.91

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Solution

The fourth proportional to 3,621.29, 5,431.49 and 1,155.91 is: 1,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.29 : 5,431.49 = 1,155.91 : x
  2. Step 2: Convert to fraction form
    3,621.29/5,431.49 = 1,155.91/x
  3. Step 3: Cross multiply
    3,621.29x = 5,431.49 × 1,155.91
  4. Step 4: Simplify right side
    3,621.29x = 6,278,294.25
  5. Step 5: Solve for x
    x = 6,278,294.25/3,621.29
  6. Step 6: Final answer
    x = 1,733.72

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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.