Home / 3,748.32-5,172.40-2,092

Finding the Fourth Proportional to 3,748.32, 5,172.40 and 2,092

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Solution

The fourth proportional to 3,748.32, 5,172.40 and 2,092 is: 2,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.32 : 5,172.40 = 2,092 : x
  2. Step 2: Convert to fraction form
    3,748.32/5,172.40 = 2,092/x
  3. Step 3: Cross multiply
    3,748.32x = 5,172.40 × 2,092
  4. Step 4: Simplify right side
    3,748.32x = 10,820,660.80
  5. Step 5: Solve for x
    x = 10,820,660.80/3,748.32
  6. Step 6: Final answer
    x = 2,886.80

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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.