Home / 2,781.82-3,838.87-1,522.94

Finding the Fourth Proportional to 2,781.82, 3,838.87 and 1,522.94

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Solution

The fourth proportional to 2,781.82, 3,838.87 and 1,522.94 is: 2,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.82 : 3,838.87 = 1,522.94 : x
  2. Step 2: Convert to fraction form
    2,781.82/3,838.87 = 1,522.94/x
  3. Step 3: Cross multiply
    2,781.82x = 3,838.87 × 1,522.94
  4. Step 4: Simplify right side
    2,781.82x = 5,846,368.68
  5. Step 5: Solve for x
    x = 5,846,368.68/2,781.82
  6. Step 6: Final answer
    x = 2,101.63

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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.