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Finding the Fourth Proportional to 2,206.08, 3,309.12 and 1,180.08

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Solution

The fourth proportional to 2,206.08, 3,309.12 and 1,180.08 is: 1,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.08 : 3,309.12 = 1,180.08 : x
  2. Step 2: Convert to fraction form
    2,206.08/3,309.12 = 1,180.08/x
  3. Step 3: Cross multiply
    2,206.08x = 3,309.12 × 1,180.08
  4. Step 4: Simplify right side
    2,206.08x = 3,905,026.33
  5. Step 5: Solve for x
    x = 3,905,026.33/2,206.08
  6. Step 6: Final answer
    x = 1,770.12

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1.5x scale

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.