Home / 2,181.28-3,008.52-1,517.80

Finding the Fourth Proportional to 2,181.28, 3,008.52 and 1,517.80

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Solution

The fourth proportional to 2,181.28, 3,008.52 and 1,517.80 is: 2,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.28 : 3,008.52 = 1,517.80 : x
  2. Step 2: Convert to fraction form
    2,181.28/3,008.52 = 1,517.80/x
  3. Step 3: Cross multiply
    2,181.28x = 3,008.52 × 1,517.80
  4. Step 4: Simplify right side
    2,181.28x = 4,566,331.66
  5. Step 5: Solve for x
    x = 4,566,331.66/2,181.28
  6. Step 6: Final answer
    x = 2,093.42

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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.