Home / 2,816.30-4,224.45-2,665.10

Finding the Fourth Proportional to 2,816.30, 4,224.45 and 2,665.10

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Solution

The fourth proportional to 2,816.30, 4,224.45 and 2,665.10 is: 3,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.30 : 4,224.45 = 2,665.10 : x
  2. Step 2: Convert to fraction form
    2,816.30/4,224.45 = 2,665.10/x
  3. Step 3: Cross multiply
    2,816.30x = 4,224.45 × 2,665.10
  4. Step 4: Simplify right side
    2,816.30x = 11,258,581.70
  5. Step 5: Solve for x
    x = 11,258,581.70/2,816.30
  6. Step 6: Final answer
    x = 3,997.65

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Half scale
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Double scale
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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.