Home / 3,387.16-5,081.42-1,439.35

Finding the Fourth Proportional to 3,387.16, 5,081.42 and 1,439.35

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Solution

The fourth proportional to 3,387.16, 5,081.42 and 1,439.35 is: 2,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.16 : 5,081.42 = 1,439.35 : x
  2. Step 2: Convert to fraction form
    3,387.16/5,081.42 = 1,439.35/x
  3. Step 3: Cross multiply
    3,387.16x = 5,081.42 × 1,439.35
  4. Step 4: Simplify right side
    3,387.16x = 7,313,921.98
  5. Step 5: Solve for x
    x = 7,313,921.98/3,387.16
  6. Step 6: Final answer
    x = 2,159.31

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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.