Home / 5,400.87-8,099.79-3,423.56

Finding the Fourth Proportional to 5,400.87, 8,099.79 and 3,423.56

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Solution

The fourth proportional to 5,400.87, 8,099.79 and 3,423.56 is: 5,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.87 : 8,099.79 = 3,423.56 : x
  2. Step 2: Convert to fraction form
    5,400.87/8,099.79 = 3,423.56/x
  3. Step 3: Cross multiply
    5,400.87x = 8,099.79 × 3,423.56
  4. Step 4: Simplify right side
    5,400.87x = 27,730,117.05
  5. Step 5: Solve for x
    x = 27,730,117.05/5,400.87
  6. Step 6: Final answer
    x = 5,134.38

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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.