Home / 3,722.18-5,578.11-1,639.06

Finding the Fourth Proportional to 3,722.18, 5,578.11 and 1,639.06

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Solution

The fourth proportional to 3,722.18, 5,578.11 and 1,639.06 is: 2,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.18 : 5,578.11 = 1,639.06 : x
  2. Step 2: Convert to fraction form
    3,722.18/5,578.11 = 1,639.06/x
  3. Step 3: Cross multiply
    3,722.18x = 5,578.11 × 1,639.06
  4. Step 4: Simplify right side
    3,722.18x = 9,142,868.26
  5. Step 5: Solve for x
    x = 9,142,868.26/3,722.18
  6. Step 6: Final answer
    x = 2,456.32

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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.