Home / 3,718.27-5,578.23-1,121.02

Finding the Fourth Proportional to 3,718.27, 5,578.23 and 1,121.02

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Solution

The fourth proportional to 3,718.27, 5,578.23 and 1,121.02 is: 1,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.27 : 5,578.23 = 1,121.02 : x
  2. Step 2: Convert to fraction form
    3,718.27/5,578.23 = 1,121.02/x
  3. Step 3: Cross multiply
    3,718.27x = 5,578.23 × 1,121.02
  4. Step 4: Simplify right side
    3,718.27x = 6,253,273.90
  5. Step 5: Solve for x
    x = 6,253,273.90/3,718.27
  6. Step 6: Final answer
    x = 1,681.77

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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.