Home / 2,590.30-3,882.20-2,040.32

Finding the Fourth Proportional to 2,590.30, 3,882.20 and 2,040.32

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Solution

The fourth proportional to 2,590.30, 3,882.20 and 2,040.32 is: 3,057.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.30 : 3,882.20 = 2,040.32 : x
  2. Step 2: Convert to fraction form
    2,590.30/3,882.20 = 2,040.32/x
  3. Step 3: Cross multiply
    2,590.30x = 3,882.20 × 2,040.32
  4. Step 4: Simplify right side
    2,590.30x = 7,920,930.30
  5. Step 5: Solve for x
    x = 7,920,930.30/2,590.30
  6. Step 6: Final answer
    x = 3,057.92

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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.