Home / 4,000.68-5,518.44-2,879.84

Finding the Fourth Proportional to 4,000.68, 5,518.44 and 2,879.84

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Solution

The fourth proportional to 4,000.68, 5,518.44 and 2,879.84 is: 3,972.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.68 : 5,518.44 = 2,879.84 : x
  2. Step 2: Convert to fraction form
    4,000.68/5,518.44 = 2,879.84/x
  3. Step 3: Cross multiply
    4,000.68x = 5,518.44 × 2,879.84
  4. Step 4: Simplify right side
    4,000.68x = 15,892,224.25
  5. Step 5: Solve for x
    x = 15,892,224.25/4,000.68
  6. Step 6: Final answer
    x = 3,972.38

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Half scale
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Double 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.