Home / 3,477.62-5,218.10-2,161.02

Finding the Fourth Proportional to 3,477.62, 5,218.10 and 2,161.02

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Solution

The fourth proportional to 3,477.62, 5,218.10 and 2,161.02 is: 3,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.62 : 5,218.10 = 2,161.02 : x
  2. Step 2: Convert to fraction form
    3,477.62/5,218.10 = 2,161.02/x
  3. Step 3: Cross multiply
    3,477.62x = 5,218.10 × 2,161.02
  4. Step 4: Simplify right side
    3,477.62x = 11,276,418.46
  5. Step 5: Solve for x
    x = 11,276,418.46/3,477.62
  6. Step 6: Final answer
    x = 3,242.57

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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.