Home / 2,272.43-3,135.90-1,277.71

Finding the Fourth Proportional to 2,272.43, 3,135.90 and 1,277.71

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Solution

The fourth proportional to 2,272.43, 3,135.90 and 1,277.71 is: 1,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.43 : 3,135.90 = 1,277.71 : x
  2. Step 2: Convert to fraction form
    2,272.43/3,135.90 = 1,277.71/x
  3. Step 3: Cross multiply
    2,272.43x = 3,135.90 × 1,277.71
  4. Step 4: Simplify right side
    2,272.43x = 4,006,767.74
  5. Step 5: Solve for x
    x = 4,006,767.74/2,272.43
  6. Step 6: Final answer
    x = 1,763.21

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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.