Home / 2,218.30-3,327.33-757.45

Finding the Fourth Proportional to 2,218.30, 3,327.33 and 757.45

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Solution

The fourth proportional to 2,218.30, 3,327.33 and 757.45 is: 1,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.30 : 3,327.33 = 757.45 : x
  2. Step 2: Convert to fraction form
    2,218.30/3,327.33 = 757.45/x
  3. Step 3: Cross multiply
    2,218.30x = 3,327.33 × 757.45
  4. Step 4: Simplify right side
    2,218.30x = 2,520,286.11
  5. Step 5: Solve for x
    x = 2,520,286.11/2,218.30
  6. Step 6: Final answer
    x = 1,136.13

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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.