Home / 5,115.40-7,670.66-2,923.54

Finding the Fourth Proportional to 5,115.40, 7,670.66 and 2,923.54

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Solution

The fourth proportional to 5,115.40, 7,670.66 and 2,923.54 is: 4,383.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.40 : 7,670.66 = 2,923.54 : x
  2. Step 2: Convert to fraction form
    5,115.40/7,670.66 = 2,923.54/x
  3. Step 3: Cross multiply
    5,115.40x = 7,670.66 × 2,923.54
  4. Step 4: Simplify right side
    5,115.40x = 22,425,481.34
  5. Step 5: Solve for x
    x = 22,425,481.34/5,115.40
  6. Step 6: Final answer
    x = 4,383.92

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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.