Home / 3,945.18-5,917.76-1,348.14

Finding the Fourth Proportional to 3,945.18, 5,917.76 and 1,348.14

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Solution

The fourth proportional to 3,945.18, 5,917.76 and 1,348.14 is: 2,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.18 : 5,917.76 = 1,348.14 : x
  2. Step 2: Convert to fraction form
    3,945.18/5,917.76 = 1,348.14/x
  3. Step 3: Cross multiply
    3,945.18x = 5,917.76 × 1,348.14
  4. Step 4: Simplify right side
    3,945.18x = 7,977,968.97
  5. Step 5: Solve for x
    x = 7,977,968.97/3,945.18
  6. Step 6: Final answer
    x = 2,022.21

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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.