Home / 7,941.85-11,911.85-2,098.92

Finding the Fourth Proportional to 7,941.85, 11,911.85 and 2,098.92

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Solution

The fourth proportional to 7,941.85, 11,911.85 and 2,098.92 is: 3,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.85 : 11,911.85 = 2,098.92 : x
  2. Step 2: Convert to fraction form
    7,941.85/11,911.85 = 2,098.92/x
  3. Step 3: Cross multiply
    7,941.85x = 11,911.85 × 2,098.92
  4. Step 4: Simplify right side
    7,941.85x = 25,002,020.20
  5. Step 5: Solve for x
    x = 25,002,020.20/7,941.85
  6. Step 6: Final answer
    x = 3,148.14

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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.