Home / 2,220.55-3,330.51-759.49

Finding the Fourth Proportional to 2,220.55, 3,330.51 and 759.49

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Solution

The fourth proportional to 2,220.55, 3,330.51 and 759.49 is: 1,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.55 : 3,330.51 = 759.49 : x
  2. Step 2: Convert to fraction form
    2,220.55/3,330.51 = 759.49/x
  3. Step 3: Cross multiply
    2,220.55x = 3,330.51 × 759.49
  4. Step 4: Simplify right side
    2,220.55x = 2,529,489.04
  5. Step 5: Solve for x
    x = 2,529,489.04/2,220.55
  6. Step 6: Final answer
    x = 1,139.13

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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.