Home / 3,820.88-5,272.40-2,248.80

Finding the Fourth Proportional to 3,820.88, 5,272.40 and 2,248.80

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Solution

The fourth proportional to 3,820.88, 5,272.40 and 2,248.80 is: 3,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.88 : 5,272.40 = 2,248.80 : x
  2. Step 2: Convert to fraction form
    3,820.88/5,272.40 = 2,248.80/x
  3. Step 3: Cross multiply
    3,820.88x = 5,272.40 × 2,248.80
  4. Step 4: Simplify right side
    3,820.88x = 11,856,573.12
  5. Step 5: Solve for x
    x = 11,856,573.12/3,820.88
  6. Step 6: Final answer
    x = 3,103.10

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1.5x scale

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.