Home / 5,478.81-8,217.41-2,015.25

Finding the Fourth Proportional to 5,478.81, 8,217.41 and 2,015.25

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Solution

The fourth proportional to 5,478.81, 8,217.41 and 2,015.25 is: 3,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.81 : 8,217.41 = 2,015.25 : x
  2. Step 2: Convert to fraction form
    5,478.81/8,217.41 = 2,015.25/x
  3. Step 3: Cross multiply
    5,478.81x = 8,217.41 × 2,015.25
  4. Step 4: Simplify right side
    5,478.81x = 16,560,125.43
  5. Step 5: Solve for x
    x = 16,560,125.43/5,478.81
  6. Step 6: Final answer
    x = 3,022.58

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.