Home / 3,432.36-5,147.22-1,239.96

Finding the Fourth Proportional to 3,432.36, 5,147.22 and 1,239.96

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Solution

The fourth proportional to 3,432.36, 5,147.22 and 1,239.96 is: 1,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.36 : 5,147.22 = 1,239.96 : x
  2. Step 2: Convert to fraction form
    3,432.36/5,147.22 = 1,239.96/x
  3. Step 3: Cross multiply
    3,432.36x = 5,147.22 × 1,239.96
  4. Step 4: Simplify right side
    3,432.36x = 6,382,346.91
  5. Step 5: Solve for x
    x = 6,382,346.91/3,432.36
  6. Step 6: Final answer
    x = 1,859.46

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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.