Home / 3,112.83-4,656.49-2,839.15

Finding the Fourth Proportional to 3,112.83, 4,656.49 and 2,839.15

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Solution

The fourth proportional to 3,112.83, 4,656.49 and 2,839.15 is: 4,247.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.83 : 4,656.49 = 2,839.15 : x
  2. Step 2: Convert to fraction form
    3,112.83/4,656.49 = 2,839.15/x
  3. Step 3: Cross multiply
    3,112.83x = 4,656.49 × 2,839.15
  4. Step 4: Simplify right side
    3,112.83x = 13,220,472.31
  5. Step 5: Solve for x
    x = 13,220,472.31/3,112.83
  6. Step 6: Final answer
    x = 4,247.09

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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.