Home / 7,371.79-11,057.28-2,988.07

Finding the Fourth Proportional to 7,371.79, 11,057.28 and 2,988.07

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Solution

The fourth proportional to 7,371.79, 11,057.28 and 2,988.07 is: 4,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.79 : 11,057.28 = 2,988.07 : x
  2. Step 2: Convert to fraction form
    7,371.79/11,057.28 = 2,988.07/x
  3. Step 3: Cross multiply
    7,371.79x = 11,057.28 × 2,988.07
  4. Step 4: Simplify right side
    7,371.79x = 33,039,926.65
  5. Step 5: Solve for x
    x = 33,039,926.65/7,371.79
  6. Step 6: Final answer
    x = 4,481.94

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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.