Home / 7,103.72-10,654.29-1,908.38

Finding the Fourth Proportional to 7,103.72, 10,654.29 and 1,908.38

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Solution

The fourth proportional to 7,103.72, 10,654.29 and 1,908.38 is: 2,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.72 : 10,654.29 = 1,908.38 : x
  2. Step 2: Convert to fraction form
    7,103.72/10,654.29 = 1,908.38/x
  3. Step 3: Cross multiply
    7,103.72x = 10,654.29 × 1,908.38
  4. Step 4: Simplify right side
    7,103.72x = 20,332,380.68
  5. Step 5: Solve for x
    x = 20,332,380.68/7,103.72
  6. Step 6: Final answer
    x = 2,862.22

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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.