Home / 1,480.07-2,220.24-749.18

Finding the Fourth Proportional to 1,480.07, 2,220.24 and 749.18

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Solution

The fourth proportional to 1,480.07, 2,220.24 and 749.18 is: 1,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.07 : 2,220.24 = 749.18 : x
  2. Step 2: Convert to fraction form
    1,480.07/2,220.24 = 749.18/x
  3. Step 3: Cross multiply
    1,480.07x = 2,220.24 × 749.18
  4. Step 4: Simplify right side
    1,480.07x = 1,663,348.30
  5. Step 5: Solve for x
    x = 1,663,348.30/1,480.07
  6. Step 6: Final answer
    x = 1,123.83

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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.