Home / 4,301.20-6,446.12-2,221.12

Finding the Fourth Proportional to 4,301.20, 6,446.12 and 2,221.12

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Solution

The fourth proportional to 4,301.20, 6,446.12 and 2,221.12 is: 3,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.20 : 6,446.12 = 2,221.12 : x
  2. Step 2: Convert to fraction form
    4,301.20/6,446.12 = 2,221.12/x
  3. Step 3: Cross multiply
    4,301.20x = 6,446.12 × 2,221.12
  4. Step 4: Simplify right side
    4,301.20x = 14,317,606.05
  5. Step 5: Solve for x
    x = 14,317,606.05/4,301.20
  6. Step 6: Final answer
    x = 3,328.75

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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.