Home / 3,306.70-4,964.55-2,143.90

Finding the Fourth Proportional to 3,306.70, 4,964.55 and 2,143.90

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Solution

The fourth proportional to 3,306.70, 4,964.55 and 2,143.90 is: 3,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.70 : 4,964.55 = 2,143.90 : x
  2. Step 2: Convert to fraction form
    3,306.70/4,964.55 = 2,143.90/x
  3. Step 3: Cross multiply
    3,306.70x = 4,964.55 × 2,143.90
  4. Step 4: Simplify right side
    3,306.70x = 10,643,498.75
  5. Step 5: Solve for x
    x = 10,643,498.75/3,306.70
  6. Step 6: Final answer
    x = 3,218.77

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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.