Home / 3,278.13-4,909.10-2,443.20

Finding the Fourth Proportional to 3,278.13, 4,909.10 and 2,443.20

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Solution

The fourth proportional to 3,278.13, 4,909.10 and 2,443.20 is: 3,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.13 : 4,909.10 = 2,443.20 : x
  2. Step 2: Convert to fraction form
    3,278.13/4,909.10 = 2,443.20/x
  3. Step 3: Cross multiply
    3,278.13x = 4,909.10 × 2,443.20
  4. Step 4: Simplify right side
    3,278.13x = 11,993,900.90
  5. Step 5: Solve for x
    x = 11,993,900.90/3,278.13
  6. Step 6: Final answer
    x = 3,658.76

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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.