Home / 2,521.68-3,784.86-1,289.97

Finding the Fourth Proportional to 2,521.68, 3,784.86 and 1,289.97

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Solution

The fourth proportional to 2,521.68, 3,784.86 and 1,289.97 is: 1,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.68 : 3,784.86 = 1,289.97 : x
  2. Step 2: Convert to fraction form
    2,521.68/3,784.86 = 1,289.97/x
  3. Step 3: Cross multiply
    2,521.68x = 3,784.86 × 1,289.97
  4. Step 4: Simplify right side
    2,521.68x = 4,882,355.85
  5. Step 5: Solve for x
    x = 4,882,355.85/2,521.68
  6. Step 6: Final answer
    x = 1,936.15

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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.