Home / 7,941.36-11,912-2,098.40

Finding the Fourth Proportional to 7,941.36, 11,912 and 2,098.40

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Solution

The fourth proportional to 7,941.36, 11,912 and 2,098.40 is: 3,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.36 : 11,912 = 2,098.40 : x
  2. Step 2: Convert to fraction form
    7,941.36/11,912 = 2,098.40/x
  3. Step 3: Cross multiply
    7,941.36x = 11,912 × 2,098.40
  4. Step 4: Simplify right side
    7,941.36x = 24,996,140.80
  5. Step 5: Solve for x
    x = 24,996,140.80/7,941.36
  6. Step 6: Final answer
    x = 3,147.59

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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.