Home / 2,234.10-3,351.15-2,139.30

Finding the Fourth Proportional to 2,234.10, 3,351.15 and 2,139.30

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Solution

The fourth proportional to 2,234.10, 3,351.15 and 2,139.30 is: 3,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.10 : 3,351.15 = 2,139.30 : x
  2. Step 2: Convert to fraction form
    2,234.10/3,351.15 = 2,139.30/x
  3. Step 3: Cross multiply
    2,234.10x = 3,351.15 × 2,139.30
  4. Step 4: Simplify right side
    2,234.10x = 7,169,115.20
  5. Step 5: Solve for x
    x = 7,169,115.20/2,234.10
  6. Step 6: Final answer
    x = 3,208.95

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1.5x scale

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.