Home / 3,947.24-5,914.38-2,909.36

Finding the Fourth Proportional to 3,947.24, 5,914.38 and 2,909.36

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Solution

The fourth proportional to 3,947.24, 5,914.38 and 2,909.36 is: 4,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.24 : 5,914.38 = 2,909.36 : x
  2. Step 2: Convert to fraction form
    3,947.24/5,914.38 = 2,909.36/x
  3. Step 3: Cross multiply
    3,947.24x = 5,914.38 × 2,909.36
  4. Step 4: Simplify right side
    3,947.24x = 17,207,060.60
  5. Step 5: Solve for x
    x = 17,207,060.60/3,947.24
  6. Step 6: Final answer
    x = 4,359.26

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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.