Home / 5,399.40-8,099.97-2,279.87

Finding the Fourth Proportional to 5,399.40, 8,099.97 and 2,279.87

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Solution

The fourth proportional to 5,399.40, 8,099.97 and 2,279.87 is: 3,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.40 : 8,099.97 = 2,279.87 : x
  2. Step 2: Convert to fraction form
    5,399.40/8,099.97 = 2,279.87/x
  3. Step 3: Cross multiply
    5,399.40x = 8,099.97 × 2,279.87
  4. Step 4: Simplify right side
    5,399.40x = 18,466,838.10
  5. Step 5: Solve for x
    x = 18,466,838.10/5,399.40
  6. Step 6: Final answer
    x = 3,420.16

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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.