Home / 5,399.87-8,099.42-3,320.19

Finding the Fourth Proportional to 5,399.87, 8,099.42 and 3,320.19

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Solution

The fourth proportional to 5,399.87, 8,099.42 and 3,320.19 is: 4,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.87 : 8,099.42 = 3,320.19 : x
  2. Step 2: Convert to fraction form
    5,399.87/8,099.42 = 3,320.19/x
  3. Step 3: Cross multiply
    5,399.87x = 8,099.42 × 3,320.19
  4. Step 4: Simplify right side
    5,399.87x = 26,891,596.69
  5. Step 5: Solve for x
    x = 26,891,596.69/5,399.87
  6. Step 6: Final answer
    x = 4,980.05

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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.