Home / 7,168.96-10,749.33-2,781.29

Finding the Fourth Proportional to 7,168.96, 10,749.33 and 2,781.29

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Solution

The fourth proportional to 7,168.96, 10,749.33 and 2,781.29 is: 4,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.96 : 10,749.33 = 2,781.29 : x
  2. Step 2: Convert to fraction form
    7,168.96/10,749.33 = 2,781.29/x
  3. Step 3: Cross multiply
    7,168.96x = 10,749.33 × 2,781.29
  4. Step 4: Simplify right side
    7,168.96x = 29,897,004.04
  5. Step 5: Solve for x
    x = 29,897,004.04/7,168.96
  6. Step 6: Final answer
    x = 4,170.34

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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.