Home / 2,497.88-3,447.09-1,378.85

Finding the Fourth Proportional to 2,497.88, 3,447.09 and 1,378.85

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Solution

The fourth proportional to 2,497.88, 3,447.09 and 1,378.85 is: 1,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,497.88 : 3,447.09 = 1,378.85 : x
  2. Step 2: Convert to fraction form
    2,497.88/3,447.09 = 1,378.85/x
  3. Step 3: Cross multiply
    2,497.88x = 3,447.09 × 1,378.85
  4. Step 4: Simplify right side
    2,497.88x = 4,753,020.05
  5. Step 5: Solve for x
    x = 4,753,020.05/2,497.88
  6. Step 6: Final answer
    x = 1,902.82

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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.