Home / 7,110.65-10,667.09-2,179.78

Finding the Fourth Proportional to 7,110.65, 10,667.09 and 2,179.78

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Solution

The fourth proportional to 7,110.65, 10,667.09 and 2,179.78 is: 3,270.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.65 : 10,667.09 = 2,179.78 : x
  2. Step 2: Convert to fraction form
    7,110.65/10,667.09 = 2,179.78/x
  3. Step 3: Cross multiply
    7,110.65x = 10,667.09 × 2,179.78
  4. Step 4: Simplify right side
    7,110.65x = 23,251,888.22
  5. Step 5: Solve for x
    x = 23,251,888.22/7,110.65
  6. Step 6: Final answer
    x = 3,270.01

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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.