Home / 2,019.76-3,034.39-1,188.95

Finding the Fourth Proportional to 2,019.76, 3,034.39 and 1,188.95

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Solution

The fourth proportional to 2,019.76, 3,034.39 and 1,188.95 is: 1,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.76 : 3,034.39 = 1,188.95 : x
  2. Step 2: Convert to fraction form
    2,019.76/3,034.39 = 1,188.95/x
  3. Step 3: Cross multiply
    2,019.76x = 3,034.39 × 1,188.95
  4. Step 4: Simplify right side
    2,019.76x = 3,607,737.99
  5. Step 5: Solve for x
    x = 3,607,737.99/2,019.76
  6. Step 6: Final answer
    x = 1,786.22

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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.