Home / 3,427.23-5,131.29-2,191.59

Finding the Fourth Proportional to 3,427.23, 5,131.29 and 2,191.59

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Solution

The fourth proportional to 3,427.23, 5,131.29 and 2,191.59 is: 3,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.23 : 5,131.29 = 2,191.59 : x
  2. Step 2: Convert to fraction form
    3,427.23/5,131.29 = 2,191.59/x
  3. Step 3: Cross multiply
    3,427.23x = 5,131.29 × 2,191.59
  4. Step 4: Simplify right side
    3,427.23x = 11,245,683.85
  5. Step 5: Solve for x
    x = 11,245,683.85/3,427.23
  6. Step 6: Final answer
    x = 3,281.27

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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.