Home / 3,239.88-4,859.82-1,291.62

Finding the Fourth Proportional to 3,239.88, 4,859.82 and 1,291.62

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Solution

The fourth proportional to 3,239.88, 4,859.82 and 1,291.62 is: 1,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.88 : 4,859.82 = 1,291.62 : x
  2. Step 2: Convert to fraction form
    3,239.88/4,859.82 = 1,291.62/x
  3. Step 3: Cross multiply
    3,239.88x = 4,859.82 × 1,291.62
  4. Step 4: Simplify right side
    3,239.88x = 6,277,040.71
  5. Step 5: Solve for x
    x = 6,277,040.71/3,239.88
  6. Step 6: Final answer
    x = 1,937.43

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1.5x scale

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.