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Finding the Fourth Proportional to 2,508.88, 3,759.68 and 1,779.88

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Solution

The fourth proportional to 2,508.88, 3,759.68 and 1,779.88 is: 2,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.88 : 3,759.68 = 1,779.88 : x
  2. Step 2: Convert to fraction form
    2,508.88/3,759.68 = 1,779.88/x
  3. Step 3: Cross multiply
    2,508.88x = 3,759.68 × 1,779.88
  4. Step 4: Simplify right side
    2,508.88x = 6,691,779.24
  5. Step 5: Solve for x
    x = 6,691,779.24/2,508.88
  6. Step 6: Final answer
    x = 2,667.24

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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.