Home / 3,169.85-4,378.04-2,422.14

Finding the Fourth Proportional to 3,169.85, 4,378.04 and 2,422.14

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Solution

The fourth proportional to 3,169.85, 4,378.04 and 2,422.14 is: 3,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.85 : 4,378.04 = 2,422.14 : x
  2. Step 2: Convert to fraction form
    3,169.85/4,378.04 = 2,422.14/x
  3. Step 3: Cross multiply
    3,169.85x = 4,378.04 × 2,422.14
  4. Step 4: Simplify right side
    3,169.85x = 10,604,213.69
  5. Step 5: Solve for x
    x = 10,604,213.69/3,169.85
  6. Step 6: Final answer
    x = 3,345.34

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Half scale
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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.