Home / 7,938.32-11,908.79-2,673.80

Finding the Fourth Proportional to 7,938.32, 11,908.79 and 2,673.80

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Solution

The fourth proportional to 7,938.32, 11,908.79 and 2,673.80 is: 4,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.32 : 11,908.79 = 2,673.80 : x
  2. Step 2: Convert to fraction form
    7,938.32/11,908.79 = 2,673.80/x
  3. Step 3: Cross multiply
    7,938.32x = 11,908.79 × 2,673.80
  4. Step 4: Simplify right side
    7,938.32x = 31,841,722.70
  5. Step 5: Solve for x
    x = 31,841,722.70/7,938.32
  6. Step 6: Final answer
    x = 4,011.14

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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.