Home / 6,291.56-8,678.39-3,771.95

Finding the Fourth Proportional to 6,291.56, 8,678.39 and 3,771.95

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Solution

The fourth proportional to 6,291.56, 8,678.39 and 3,771.95 is: 5,202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.56 : 8,678.39 = 3,771.95 : x
  2. Step 2: Convert to fraction form
    6,291.56/8,678.39 = 3,771.95/x
  3. Step 3: Cross multiply
    6,291.56x = 8,678.39 × 3,771.95
  4. Step 4: Simplify right side
    6,291.56x = 32,734,456.00
  5. Step 5: Solve for x
    x = 32,734,456.00/6,291.56
  6. Step 6: Final answer
    x = 5,202.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.