Home / 2,674.20-4,013.40-2,155.47

Finding the Fourth Proportional to 2,674.20, 4,013.40 and 2,155.47

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Solution

The fourth proportional to 2,674.20, 4,013.40 and 2,155.47 is: 3,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.20 : 4,013.40 = 2,155.47 : x
  2. Step 2: Convert to fraction form
    2,674.20/4,013.40 = 2,155.47/x
  3. Step 3: Cross multiply
    2,674.20x = 4,013.40 × 2,155.47
  4. Step 4: Simplify right side
    2,674.20x = 8,650,763.30
  5. Step 5: Solve for x
    x = 8,650,763.30/2,674.20
  6. Step 6: Final answer
    x = 3,234.90

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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.