Home / 2,311.20-3,467.40-1,960.92

Finding the Fourth Proportional to 2,311.20, 3,467.40 and 1,960.92

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Solution

The fourth proportional to 2,311.20, 3,467.40 and 1,960.92 is: 2,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.20 : 3,467.40 = 1,960.92 : x
  2. Step 2: Convert to fraction form
    2,311.20/3,467.40 = 1,960.92/x
  3. Step 3: Cross multiply
    2,311.20x = 3,467.40 × 1,960.92
  4. Step 4: Simplify right side
    2,311.20x = 6,799,294.01
  5. Step 5: Solve for x
    x = 6,799,294.01/2,311.20
  6. Step 6: Final answer
    x = 2,941.89

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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.