Home / 7,081.11-9,771.08-4,097.88

Finding the Fourth Proportional to 7,081.11, 9,771.08 and 4,097.88

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Solution

The fourth proportional to 7,081.11, 9,771.08 and 4,097.88 is: 5,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.11 : 9,771.08 = 4,097.88 : x
  2. Step 2: Convert to fraction form
    7,081.11/9,771.08 = 4,097.88/x
  3. Step 3: Cross multiply
    7,081.11x = 9,771.08 × 4,097.88
  4. Step 4: Simplify right side
    7,081.11x = 40,040,692.82
  5. Step 5: Solve for x
    x = 40,040,692.82/7,081.11
  6. Step 6: Final answer
    x = 5,654.58

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1.5x scale

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.