Home / 7,851.38-11,768.30-3,403.91

Finding the Fourth Proportional to 7,851.38, 11,768.30 and 3,403.91

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Solution

The fourth proportional to 7,851.38, 11,768.30 and 3,403.91 is: 5,102.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.38 : 11,768.30 = 3,403.91 : x
  2. Step 2: Convert to fraction form
    7,851.38/11,768.30 = 3,403.91/x
  3. Step 3: Cross multiply
    7,851.38x = 11,768.30 × 3,403.91
  4. Step 4: Simplify right side
    7,851.38x = 40,058,234.05
  5. Step 5: Solve for x
    x = 40,058,234.05/7,851.38
  6. Step 6: Final answer
    x = 5,102.06

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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.