Home / 2,480.40-3,729.71-2,079.45

Finding the Fourth Proportional to 2,480.40, 3,729.71 and 2,079.45

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Solution

The fourth proportional to 2,480.40, 3,729.71 and 2,079.45 is: 3,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.40 : 3,729.71 = 2,079.45 : x
  2. Step 2: Convert to fraction form
    2,480.40/3,729.71 = 2,079.45/x
  3. Step 3: Cross multiply
    2,480.40x = 3,729.71 × 2,079.45
  4. Step 4: Simplify right side
    2,480.40x = 7,755,750.66
  5. Step 5: Solve for x
    x = 7,755,750.66/2,480.40
  6. Step 6: Final answer
    x = 3,126.81

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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.