Home / 3,739.08-5,161.68-2,166.87

Finding the Fourth Proportional to 3,739.08, 5,161.68 and 2,166.87

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Solution

The fourth proportional to 3,739.08, 5,161.68 and 2,166.87 is: 2,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.08 : 5,161.68 = 2,166.87 : x
  2. Step 2: Convert to fraction form
    3,739.08/5,161.68 = 2,166.87/x
  3. Step 3: Cross multiply
    3,739.08x = 5,161.68 × 2,166.87
  4. Step 4: Simplify right side
    3,739.08x = 11,184,689.54
  5. Step 5: Solve for x
    x = 11,184,689.54/3,739.08
  6. Step 6: Final answer
    x = 2,991.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.