Home / 7,636.85-11,439.68-3,931.29

Finding the Fourth Proportional to 7,636.85, 11,439.68 and 3,931.29

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Solution

The fourth proportional to 7,636.85, 11,439.68 and 3,931.29 is: 5,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.85 : 11,439.68 = 3,931.29 : x
  2. Step 2: Convert to fraction form
    7,636.85/11,439.68 = 3,931.29/x
  3. Step 3: Cross multiply
    7,636.85x = 11,439.68 × 3,931.29
  4. Step 4: Simplify right side
    7,636.85x = 44,972,734.22
  5. Step 5: Solve for x
    x = 44,972,734.22/7,636.85
  6. Step 6: Final answer
    x = 5,888.91

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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.