Home / 2,687.20-4,029.93-2,512.28

Finding the Fourth Proportional to 2,687.20, 4,029.93 and 2,512.28

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Solution

The fourth proportional to 2,687.20, 4,029.93 and 2,512.28 is: 3,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.20 : 4,029.93 = 2,512.28 : x
  2. Step 2: Convert to fraction form
    2,687.20/4,029.93 = 2,512.28/x
  3. Step 3: Cross multiply
    2,687.20x = 4,029.93 × 2,512.28
  4. Step 4: Simplify right side
    2,687.20x = 10,124,322.62
  5. Step 5: Solve for x
    x = 10,124,322.62/2,687.20
  6. Step 6: Final answer
    x = 3,767.61

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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.