Home / 7,119.90-10,679.75-3,170.24

Finding the Fourth Proportional to 7,119.90, 10,679.75 and 3,170.24

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Solution

The fourth proportional to 7,119.90, 10,679.75 and 3,170.24 is: 4,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.90 : 10,679.75 = 3,170.24 : x
  2. Step 2: Convert to fraction form
    7,119.90/10,679.75 = 3,170.24/x
  3. Step 3: Cross multiply
    7,119.90x = 10,679.75 × 3,170.24
  4. Step 4: Simplify right side
    7,119.90x = 33,857,353.33
  5. Step 5: Solve for x
    x = 33,857,353.33/7,119.90
  6. Step 6: Final answer
    x = 4,755.31

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1.5x scale

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.