Home / 2,125.73-3,184.45-1,393.09

Finding the Fourth Proportional to 2,125.73, 3,184.45 and 1,393.09

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Solution

The fourth proportional to 2,125.73, 3,184.45 and 1,393.09 is: 2,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.73 : 3,184.45 = 1,393.09 : x
  2. Step 2: Convert to fraction form
    2,125.73/3,184.45 = 1,393.09/x
  3. Step 3: Cross multiply
    2,125.73x = 3,184.45 × 1,393.09
  4. Step 4: Simplify right side
    2,125.73x = 4,436,225.45
  5. Step 5: Solve for x
    x = 4,436,225.45/2,125.73
  6. Step 6: Final answer
    x = 2,086.92

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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.