Home / 2,781.27-4,165.47-2,535.21

Finding the Fourth Proportional to 2,781.27, 4,165.47 and 2,535.21

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Solution

The fourth proportional to 2,781.27, 4,165.47 and 2,535.21 is: 3,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.27 : 4,165.47 = 2,535.21 : x
  2. Step 2: Convert to fraction form
    2,781.27/4,165.47 = 2,535.21/x
  3. Step 3: Cross multiply
    2,781.27x = 4,165.47 × 2,535.21
  4. Step 4: Simplify right side
    2,781.27x = 10,560,341.20
  5. Step 5: Solve for x
    x = 10,560,341.20/2,781.27
  6. Step 6: Final answer
    x = 3,796.95

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1.5x scale

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.