Home / 1,519.96-2,278.31-1,085.80

Finding the Fourth Proportional to 1,519.96, 2,278.31 and 1,085.80

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Solution

The fourth proportional to 1,519.96, 2,278.31 and 1,085.80 is: 1,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.96 : 2,278.31 = 1,085.80 : x
  2. Step 2: Convert to fraction form
    1,519.96/2,278.31 = 1,085.80/x
  3. Step 3: Cross multiply
    1,519.96x = 2,278.31 × 1,085.80
  4. Step 4: Simplify right side
    1,519.96x = 2,473,777.61
  5. Step 5: Solve for x
    x = 2,473,777.61/1,519.96
  6. Step 6: Final answer
    x = 1,627.53

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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.