Home / 2,206.90-3,310.34-747.06

Finding the Fourth Proportional to 2,206.90, 3,310.34 and 747.06

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Solution

The fourth proportional to 2,206.90, 3,310.34 and 747.06 is: 1,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.90 : 3,310.34 = 747.06 : x
  2. Step 2: Convert to fraction form
    2,206.90/3,310.34 = 747.06/x
  3. Step 3: Cross multiply
    2,206.90x = 3,310.34 × 747.06
  4. Step 4: Simplify right side
    2,206.90x = 2,473,022.60
  5. Step 5: Solve for x
    x = 2,473,022.60/2,206.90
  6. Step 6: Final answer
    x = 1,120.59

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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.