Home / 6,115.78-9,174.53-1,954.42

Finding the Fourth Proportional to 6,115.78, 9,174.53 and 1,954.42

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Solution

The fourth proportional to 6,115.78, 9,174.53 and 1,954.42 is: 2,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.78 : 9,174.53 = 1,954.42 : x
  2. Step 2: Convert to fraction form
    6,115.78/9,174.53 = 1,954.42/x
  3. Step 3: Cross multiply
    6,115.78x = 9,174.53 × 1,954.42
  4. Step 4: Simplify right side
    6,115.78x = 17,930,884.92
  5. Step 5: Solve for x
    x = 17,930,884.92/6,115.78
  6. Step 6: Final answer
    x = 2,931.90

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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.