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Finding the Fourth Proportional to 2,321.54, 3,482.39 and 677.96

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Solution

The fourth proportional to 2,321.54, 3,482.39 and 677.96 is: 1,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.54 : 3,482.39 = 677.96 : x
  2. Step 2: Convert to fraction form
    2,321.54/3,482.39 = 677.96/x
  3. Step 3: Cross multiply
    2,321.54x = 3,482.39 × 677.96
  4. Step 4: Simplify right side
    2,321.54x = 2,360,900.32
  5. Step 5: Solve for x
    x = 2,360,900.32/2,321.54
  6. Step 6: Final answer
    x = 1,016.96

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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.