Home / 3,660.31-5,479.75-2,269.45

Finding the Fourth Proportional to 3,660.31, 5,479.75 and 2,269.45

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Solution

The fourth proportional to 3,660.31, 5,479.75 and 2,269.45 is: 3,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.31 : 5,479.75 = 2,269.45 : x
  2. Step 2: Convert to fraction form
    3,660.31/5,479.75 = 2,269.45/x
  3. Step 3: Cross multiply
    3,660.31x = 5,479.75 × 2,269.45
  4. Step 4: Simplify right side
    3,660.31x = 12,436,018.64
  5. Step 5: Solve for x
    x = 12,436,018.64/3,660.31
  6. Step 6: Final answer
    x = 3,397.53

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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.