Home / 2,947.26-4,418.42-1,386.48

Finding the Fourth Proportional to 2,947.26, 4,418.42 and 1,386.48

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Solution

The fourth proportional to 2,947.26, 4,418.42 and 1,386.48 is: 2,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.26 : 4,418.42 = 1,386.48 : x
  2. Step 2: Convert to fraction form
    2,947.26/4,418.42 = 1,386.48/x
  3. Step 3: Cross multiply
    2,947.26x = 4,418.42 × 1,386.48
  4. Step 4: Simplify right side
    2,947.26x = 6,126,044.03
  5. Step 5: Solve for x
    x = 6,126,044.03/2,947.26
  6. Step 6: Final answer
    x = 2,078.56

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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.