Home / 3,972.85-5,962.51-2,125.34

Finding the Fourth Proportional to 3,972.85, 5,962.51 and 2,125.34

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Solution

The fourth proportional to 3,972.85, 5,962.51 and 2,125.34 is: 3,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.85 : 5,962.51 = 2,125.34 : x
  2. Step 2: Convert to fraction form
    3,972.85/5,962.51 = 2,125.34/x
  3. Step 3: Cross multiply
    3,972.85x = 5,962.51 × 2,125.34
  4. Step 4: Simplify right side
    3,972.85x = 12,672,356.21
  5. Step 5: Solve for x
    x = 12,672,356.21/3,972.85
  6. Step 6: Final answer
    x = 3,189.74

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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.