Home / 3,718.89-5,132.19-2,040.32

Finding the Fourth Proportional to 3,718.89, 5,132.19 and 2,040.32

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Solution

The fourth proportional to 3,718.89, 5,132.19 and 2,040.32 is: 2,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.89 : 5,132.19 = 2,040.32 : x
  2. Step 2: Convert to fraction form
    3,718.89/5,132.19 = 2,040.32/x
  3. Step 3: Cross multiply
    3,718.89x = 5,132.19 × 2,040.32
  4. Step 4: Simplify right side
    3,718.89x = 10,471,284.24
  5. Step 5: Solve for x
    x = 10,471,284.24/3,718.89
  6. Step 6: Final answer
    x = 2,815.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.