Home / 2,184.92-3,278.80-1,306.76

Finding the Fourth Proportional to 2,184.92, 3,278.80 and 1,306.76

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Solution

The fourth proportional to 2,184.92, 3,278.80 and 1,306.76 is: 1,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.92 : 3,278.80 = 1,306.76 : x
  2. Step 2: Convert to fraction form
    2,184.92/3,278.80 = 1,306.76/x
  3. Step 3: Cross multiply
    2,184.92x = 3,278.80 × 1,306.76
  4. Step 4: Simplify right side
    2,184.92x = 4,284,604.69
  5. Step 5: Solve for x
    x = 4,284,604.69/2,184.92
  6. Step 6: Final answer
    x = 1,960.99

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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.