Home / 3,340.91-5,011.82-1,392.66

Finding the Fourth Proportional to 3,340.91, 5,011.82 and 1,392.66

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Solution

The fourth proportional to 3,340.91, 5,011.82 and 1,392.66 is: 2,089.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.91 : 5,011.82 = 1,392.66 : x
  2. Step 2: Convert to fraction form
    3,340.91/5,011.82 = 1,392.66/x
  3. Step 3: Cross multiply
    3,340.91x = 5,011.82 × 1,392.66
  4. Step 4: Simplify right side
    3,340.91x = 6,979,764.72
  5. Step 5: Solve for x
    x = 6,979,764.72/3,340.91
  6. Step 6: Final answer
    x = 2,089.18

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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.