Home / 5,186.74-7,781.19-1,899.94

Finding the Fourth Proportional to 5,186.74, 7,781.19 and 1,899.94

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Solution

The fourth proportional to 5,186.74, 7,781.19 and 1,899.94 is: 2,850.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.74 : 7,781.19 = 1,899.94 : x
  2. Step 2: Convert to fraction form
    5,186.74/7,781.19 = 1,899.94/x
  3. Step 3: Cross multiply
    5,186.74x = 7,781.19 × 1,899.94
  4. Step 4: Simplify right side
    5,186.74x = 14,783,794.13
  5. Step 5: Solve for x
    x = 14,783,794.13/5,186.74
  6. Step 6: Final answer
    x = 2,850.31

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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.