Home / 2,192.92-3,290.62-1,218.92

Finding the Fourth Proportional to 2,192.92, 3,290.62 and 1,218.92

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Solution

The fourth proportional to 2,192.92, 3,290.62 and 1,218.92 is: 1,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.92 : 3,290.62 = 1,218.92 : x
  2. Step 2: Convert to fraction form
    2,192.92/3,290.62 = 1,218.92/x
  3. Step 3: Cross multiply
    2,192.92x = 3,290.62 × 1,218.92
  4. Step 4: Simplify right side
    2,192.92x = 4,011,002.53
  5. Step 5: Solve for x
    x = 4,011,002.53/2,192.92
  6. Step 6: Final answer
    x = 1,829.07

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1.5x scale

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.