Home / 3,191.95-4,396.08-2,749.69

Finding the Fourth Proportional to 3,191.95, 4,396.08 and 2,749.69

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Solution

The fourth proportional to 3,191.95, 4,396.08 and 2,749.69 is: 3,786.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.95 : 4,396.08 = 2,749.69 : x
  2. Step 2: Convert to fraction form
    3,191.95/4,396.08 = 2,749.69/x
  3. Step 3: Cross multiply
    3,191.95x = 4,396.08 × 2,749.69
  4. Step 4: Simplify right side
    3,191.95x = 12,087,857.22
  5. Step 5: Solve for x
    x = 12,087,857.22/3,191.95
  6. Step 6: Final answer
    x = 3,786.98

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Double scale
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Similar ratio
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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.