Home / 2,839.60-4,238.82-2,625.76

Finding the Fourth Proportional to 2,839.60, 4,238.82 and 2,625.76

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Solution

The fourth proportional to 2,839.60, 4,238.82 and 2,625.76 is: 3,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.60 : 4,238.82 = 2,625.76 : x
  2. Step 2: Convert to fraction form
    2,839.60/4,238.82 = 2,625.76/x
  3. Step 3: Cross multiply
    2,839.60x = 4,238.82 × 2,625.76
  4. Step 4: Simplify right side
    2,839.60x = 11,130,124.00
  5. Step 5: Solve for x
    x = 11,130,124.00/2,839.60
  6. Step 6: Final answer
    x = 3,919.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.