Home / 2,194.10-3,291.15-2,161.70

Finding the Fourth Proportional to 2,194.10, 3,291.15 and 2,161.70

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Solution

The fourth proportional to 2,194.10, 3,291.15 and 2,161.70 is: 3,242.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.10 : 3,291.15 = 2,161.70 : x
  2. Step 2: Convert to fraction form
    2,194.10/3,291.15 = 2,161.70/x
  3. Step 3: Cross multiply
    2,194.10x = 3,291.15 × 2,161.70
  4. Step 4: Simplify right side
    2,194.10x = 7,114,478.96
  5. Step 5: Solve for x
    x = 7,114,478.96/2,194.10
  6. Step 6: Final answer
    x = 3,242.55

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Similar ratio
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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.