Home / 2,112.11-3,167.80-572.75

Finding the Fourth Proportional to 2,112.11, 3,167.80 and 572.75

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Solution

The fourth proportional to 2,112.11, 3,167.80 and 572.75 is: 859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.11 : 3,167.80 = 572.75 : x
  2. Step 2: Convert to fraction form
    2,112.11/3,167.80 = 572.75/x
  3. Step 3: Cross multiply
    2,112.11x = 3,167.80 × 572.75
  4. Step 4: Simplify right side
    2,112.11x = 1,814,357.45
  5. Step 5: Solve for x
    x = 1,814,357.45/2,112.11
  6. Step 6: Final answer
    x = 859.03

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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.