Home / 2,113.11-3,167.24-1,137.87

Finding the Fourth Proportional to 2,113.11, 3,167.24 and 1,137.87

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Solution

The fourth proportional to 2,113.11, 3,167.24 and 1,137.87 is: 1,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.11 : 3,167.24 = 1,137.87 : x
  2. Step 2: Convert to fraction form
    2,113.11/3,167.24 = 1,137.87/x
  3. Step 3: Cross multiply
    2,113.11x = 3,167.24 × 1,137.87
  4. Step 4: Simplify right side
    2,113.11x = 3,603,901.69
  5. Step 5: Solve for x
    x = 3,603,901.69/2,113.11
  6. Step 6: Final answer
    x = 1,705.50

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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.