Home / 3,931.64-5,892.20-2,172.52

Finding the Fourth Proportional to 3,931.64, 5,892.20 and 2,172.52

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Solution

The fourth proportional to 3,931.64, 5,892.20 and 2,172.52 is: 3,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.64 : 5,892.20 = 2,172.52 : x
  2. Step 2: Convert to fraction form
    3,931.64/5,892.20 = 2,172.52/x
  3. Step 3: Cross multiply
    3,931.64x = 5,892.20 × 2,172.52
  4. Step 4: Simplify right side
    3,931.64x = 12,800,922.34
  5. Step 5: Solve for x
    x = 12,800,922.34/3,931.64
  6. Step 6: Final answer
    x = 3,255.87

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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.