Home / 3,472.11-5,208.12-1,279.98

Finding the Fourth Proportional to 3,472.11, 5,208.12 and 1,279.98

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Solution

The fourth proportional to 3,472.11, 5,208.12 and 1,279.98 is: 1,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.11 : 5,208.12 = 1,279.98 : x
  2. Step 2: Convert to fraction form
    3,472.11/5,208.12 = 1,279.98/x
  3. Step 3: Cross multiply
    3,472.11x = 5,208.12 × 1,279.98
  4. Step 4: Simplify right side
    3,472.11x = 6,666,289.44
  5. Step 5: Solve for x
    x = 6,666,289.44/3,472.11
  6. Step 6: Final answer
    x = 1,919.95

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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.