Home / 2,816.25-4,224.38-967.90

Finding the Fourth Proportional to 2,816.25, 4,224.38 and 967.90

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Solution

The fourth proportional to 2,816.25, 4,224.38 and 967.90 is: 1,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.25 : 4,224.38 = 967.90 : x
  2. Step 2: Convert to fraction form
    2,816.25/4,224.38 = 967.90/x
  3. Step 3: Cross multiply
    2,816.25x = 4,224.38 × 967.90
  4. Step 4: Simplify right side
    2,816.25x = 4,088,758.70
  5. Step 5: Solve for x
    x = 4,088,758.70/2,816.25
  6. Step 6: Final answer
    x = 1,451.85

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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.