Home / 3,945.66-5,917.53-1,480.50

Finding the Fourth Proportional to 3,945.66, 5,917.53 and 1,480.50

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Solution

The fourth proportional to 3,945.66, 5,917.53 and 1,480.50 is: 2,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.66 : 5,917.53 = 1,480.50 : x
  2. Step 2: Convert to fraction form
    3,945.66/5,917.53 = 1,480.50/x
  3. Step 3: Cross multiply
    3,945.66x = 5,917.53 × 1,480.50
  4. Step 4: Simplify right side
    3,945.66x = 8,760,903.17
  5. Step 5: Solve for x
    x = 8,760,903.17/3,945.66
  6. Step 6: Final answer
    x = 2,220.39

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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.