Home / 3,461.39-5,192.92-1,121.40

Finding the Fourth Proportional to 3,461.39, 5,192.92 and 1,121.40

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Solution

The fourth proportional to 3,461.39, 5,192.92 and 1,121.40 is: 1,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.39 : 5,192.92 = 1,121.40 : x
  2. Step 2: Convert to fraction form
    3,461.39/5,192.92 = 1,121.40/x
  3. Step 3: Cross multiply
    3,461.39x = 5,192.92 × 1,121.40
  4. Step 4: Simplify right side
    3,461.39x = 5,823,334.88
  5. Step 5: Solve for x
    x = 5,823,334.88/3,461.39
  6. Step 6: Final answer
    x = 1,682.37

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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.