Home / 2,092.30-3,138.45-1,861.45

Finding the Fourth Proportional to 2,092.30, 3,138.45 and 1,861.45

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Solution

The fourth proportional to 2,092.30, 3,138.45 and 1,861.45 is: 2,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.30 : 3,138.45 = 1,861.45 : x
  2. Step 2: Convert to fraction form
    2,092.30/3,138.45 = 1,861.45/x
  3. Step 3: Cross multiply
    2,092.30x = 3,138.45 × 1,861.45
  4. Step 4: Simplify right side
    2,092.30x = 5,842,067.75
  5. Step 5: Solve for x
    x = 5,842,067.75/2,092.30
  6. Step 6: Final answer
    x = 2,792.18

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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.