Home / 2,137.11-3,206.13-750.39

Finding the Fourth Proportional to 2,137.11, 3,206.13 and 750.39

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Solution

The fourth proportional to 2,137.11, 3,206.13 and 750.39 is: 1,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.11 : 3,206.13 = 750.39 : x
  2. Step 2: Convert to fraction form
    2,137.11/3,206.13 = 750.39/x
  3. Step 3: Cross multiply
    2,137.11x = 3,206.13 × 750.39
  4. Step 4: Simplify right side
    2,137.11x = 2,405,847.89
  5. Step 5: Solve for x
    x = 2,405,847.89/2,137.11
  6. Step 6: Final answer
    x = 1,125.75

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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.