Home / 3,759.30-5,639.19-986.04

Finding the Fourth Proportional to 3,759.30, 5,639.19 and 986.04

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Solution

The fourth proportional to 3,759.30, 5,639.19 and 986.04 is: 1,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.30 : 5,639.19 = 986.04 : x
  2. Step 2: Convert to fraction form
    3,759.30/5,639.19 = 986.04/x
  3. Step 3: Cross multiply
    3,759.30x = 5,639.19 × 986.04
  4. Step 4: Simplify right side
    3,759.30x = 5,560,466.91
  5. Step 5: Solve for x
    x = 5,560,466.91/3,759.30
  6. Step 6: Final answer
    x = 1,479.12

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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.