Home / 5,158.08-7,744.34-2,661.39

Finding the Fourth Proportional to 5,158.08, 7,744.34 and 2,661.39

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Solution

The fourth proportional to 5,158.08, 7,744.34 and 2,661.39 is: 3,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.08 : 7,744.34 = 2,661.39 : x
  2. Step 2: Convert to fraction form
    5,158.08/7,744.34 = 2,661.39/x
  3. Step 3: Cross multiply
    5,158.08x = 7,744.34 × 2,661.39
  4. Step 4: Simplify right side
    5,158.08x = 20,610,715.69
  5. Step 5: Solve for x
    x = 20,610,715.69/5,158.08
  6. Step 6: Final answer
    x = 3,995.81

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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.