Home / 5,479.91-8,219.87-5,086.25

Finding the Fourth Proportional to 5,479.91, 8,219.87 and 5,086.25

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Solution

The fourth proportional to 5,479.91, 8,219.87 and 5,086.25 is: 7,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.91 : 8,219.87 = 5,086.25 : x
  2. Step 2: Convert to fraction form
    5,479.91/8,219.87 = 5,086.25/x
  3. Step 3: Cross multiply
    5,479.91x = 8,219.87 × 5,086.25
  4. Step 4: Simplify right side
    5,479.91x = 41,808,288.36
  5. Step 5: Solve for x
    x = 41,808,288.36/5,479.91
  6. Step 6: Final answer
    x = 7,629.38

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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.