Home / 2,497.73-3,447.01-1,378.91

Finding the Fourth Proportional to 2,497.73, 3,447.01 and 1,378.91

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Solution

The fourth proportional to 2,497.73, 3,447.01 and 1,378.91 is: 1,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,497.73 : 3,447.01 = 1,378.91 : x
  2. Step 2: Convert to fraction form
    2,497.73/3,447.01 = 1,378.91/x
  3. Step 3: Cross multiply
    2,497.73x = 3,447.01 × 1,378.91
  4. Step 4: Simplify right side
    2,497.73x = 4,753,121.73
  5. Step 5: Solve for x
    x = 4,753,121.73/2,497.73
  6. Step 6: Final answer
    x = 1,902.98

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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.