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Finding the Fourth Proportional to 2,319.12, 3,479.01 and 675.79

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Solution

The fourth proportional to 2,319.12, 3,479.01 and 675.79 is: 1,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.12 : 3,479.01 = 675.79 : x
  2. Step 2: Convert to fraction form
    2,319.12/3,479.01 = 675.79/x
  3. Step 3: Cross multiply
    2,319.12x = 3,479.01 × 675.79
  4. Step 4: Simplify right side
    2,319.12x = 2,351,080.17
  5. Step 5: Solve for x
    x = 2,351,080.17/2,319.12
  6. Step 6: Final answer
    x = 1,013.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.