Home / 7,759.28-11,638.80-2,565.56

Finding the Fourth Proportional to 7,759.28, 11,638.80 and 2,565.56

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Solution

The fourth proportional to 7,759.28, 11,638.80 and 2,565.56 is: 3,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.28 : 11,638.80 = 2,565.56 : x
  2. Step 2: Convert to fraction form
    7,759.28/11,638.80 = 2,565.56/x
  3. Step 3: Cross multiply
    7,759.28x = 11,638.80 × 2,565.56
  4. Step 4: Simplify right side
    7,759.28x = 29,860,039.73
  5. Step 5: Solve for x
    x = 29,860,039.73/7,759.28
  6. Step 6: Final answer
    x = 3,848.30

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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.