Home / 5,519.25-8,276.85-1,820.39

Finding the Fourth Proportional to 5,519.25, 8,276.85 and 1,820.39

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Solution

The fourth proportional to 5,519.25, 8,276.85 and 1,820.39 is: 2,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.25 : 8,276.85 = 1,820.39 : x
  2. Step 2: Convert to fraction form
    5,519.25/8,276.85 = 1,820.39/x
  3. Step 3: Cross multiply
    5,519.25x = 8,276.85 × 1,820.39
  4. Step 4: Simplify right side
    5,519.25x = 15,067,053.59
  5. Step 5: Solve for x
    x = 15,067,053.59/5,519.25
  6. Step 6: Final answer
    x = 2,729.91

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1.5x scale

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.