Home / 2,382.62-3,587.90-2,078.11

Finding the Fourth Proportional to 2,382.62, 3,587.90 and 2,078.11

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Solution

The fourth proportional to 2,382.62, 3,587.90 and 2,078.11 is: 3,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.62 : 3,587.90 = 2,078.11 : x
  2. Step 2: Convert to fraction form
    2,382.62/3,587.90 = 2,078.11/x
  3. Step 3: Cross multiply
    2,382.62x = 3,587.90 × 2,078.11
  4. Step 4: Simplify right side
    2,382.62x = 7,456,024.78
  5. Step 5: Solve for x
    x = 7,456,024.78/2,382.62
  6. Step 6: Final answer
    x = 3,129.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.