Home / 2,269.08-3,398.90-2,190.75

Finding the Fourth Proportional to 2,269.08, 3,398.90 and 2,190.75

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Solution

The fourth proportional to 2,269.08, 3,398.90 and 2,190.75 is: 3,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.08 : 3,398.90 = 2,190.75 : x
  2. Step 2: Convert to fraction form
    2,269.08/3,398.90 = 2,190.75/x
  3. Step 3: Cross multiply
    2,269.08x = 3,398.90 × 2,190.75
  4. Step 4: Simplify right side
    2,269.08x = 7,446,129.22
  5. Step 5: Solve for x
    x = 7,446,129.22/2,269.08
  6. Step 6: Final answer
    x = 3,281.56

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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.