Home / 3,266.90-4,505.31-2,147.43

Finding the Fourth Proportional to 3,266.90, 4,505.31 and 2,147.43

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Solution

The fourth proportional to 3,266.90, 4,505.31 and 2,147.43 is: 2,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.90 : 4,505.31 = 2,147.43 : x
  2. Step 2: Convert to fraction form
    3,266.90/4,505.31 = 2,147.43/x
  3. Step 3: Cross multiply
    3,266.90x = 4,505.31 × 2,147.43
  4. Step 4: Simplify right side
    3,266.90x = 9,674,837.85
  5. Step 5: Solve for x
    x = 9,674,837.85/3,266.90
  6. Step 6: Final answer
    x = 2,961.47

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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.