Home / 2,440.53-3,367.09-1,991.61

Finding the Fourth Proportional to 2,440.53, 3,367.09 and 1,991.61

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Solution

The fourth proportional to 2,440.53, 3,367.09 and 1,991.61 is: 2,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.53 : 3,367.09 = 1,991.61 : x
  2. Step 2: Convert to fraction form
    2,440.53/3,367.09 = 1,991.61/x
  3. Step 3: Cross multiply
    2,440.53x = 3,367.09 × 1,991.61
  4. Step 4: Simplify right side
    2,440.53x = 6,705,930.11
  5. Step 5: Solve for x
    x = 6,705,930.11/2,440.53
  6. Step 6: Final answer
    x = 2,747.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.