Home / 7,981.20-11,972.34-2,434.58

Finding the Fourth Proportional to 7,981.20, 11,972.34 and 2,434.58

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Solution

The fourth proportional to 7,981.20, 11,972.34 and 2,434.58 is: 3,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.20 : 11,972.34 = 2,434.58 : x
  2. Step 2: Convert to fraction form
    7,981.20/11,972.34 = 2,434.58/x
  3. Step 3: Cross multiply
    7,981.20x = 11,972.34 × 2,434.58
  4. Step 4: Simplify right side
    7,981.20x = 29,147,619.52
  5. Step 5: Solve for x
    x = 29,147,619.52/7,981.20
  6. Step 6: Final answer
    x = 3,652.03

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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.