Home / 2,989.20-4,126.22-2,567.87

Finding the Fourth Proportional to 2,989.20, 4,126.22 and 2,567.87

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Solution

The fourth proportional to 2,989.20, 4,126.22 and 2,567.87 is: 3,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.20 : 4,126.22 = 2,567.87 : x
  2. Step 2: Convert to fraction form
    2,989.20/4,126.22 = 2,567.87/x
  3. Step 3: Cross multiply
    2,989.20x = 4,126.22 × 2,567.87
  4. Step 4: Simplify right side
    2,989.20x = 10,595,563.08
  5. Step 5: Solve for x
    x = 10,595,563.08/2,989.20
  6. Step 6: Final answer
    x = 3,544.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.