Home / 5,399.08-8,099.58-2,112

Finding the Fourth Proportional to 5,399.08, 8,099.58 and 2,112

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Solution

The fourth proportional to 5,399.08, 8,099.58 and 2,112 is: 3,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.08 : 8,099.58 = 2,112 : x
  2. Step 2: Convert to fraction form
    5,399.08/8,099.58 = 2,112/x
  3. Step 3: Cross multiply
    5,399.08x = 8,099.58 × 2,112
  4. Step 4: Simplify right side
    5,399.08x = 17,106,312.96
  5. Step 5: Solve for x
    x = 17,106,312.96/5,399.08
  6. Step 6: Final answer
    x = 3,168.38

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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.