Home / 1,777.30-2,452.68-1,020.88

Finding the Fourth Proportional to 1,777.30, 2,452.68 and 1,020.88

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Solution

The fourth proportional to 1,777.30, 2,452.68 and 1,020.88 is: 1,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.30 : 2,452.68 = 1,020.88 : x
  2. Step 2: Convert to fraction form
    1,777.30/2,452.68 = 1,020.88/x
  3. Step 3: Cross multiply
    1,777.30x = 2,452.68 × 1,020.88
  4. Step 4: Simplify right side
    1,777.30x = 2,503,891.00
  5. Step 5: Solve for x
    x = 2,503,891.00/1,777.30
  6. Step 6: Final answer
    x = 1,408.82

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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.