Home / 2,219.91-3,329.84-1,284.26

Finding the Fourth Proportional to 2,219.91, 3,329.84 and 1,284.26

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Solution

The fourth proportional to 2,219.91, 3,329.84 and 1,284.26 is: 1,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.91 : 3,329.84 = 1,284.26 : x
  2. Step 2: Convert to fraction form
    2,219.91/3,329.84 = 1,284.26/x
  3. Step 3: Cross multiply
    2,219.91x = 3,329.84 × 1,284.26
  4. Step 4: Simplify right side
    2,219.91x = 4,276,378.39
  5. Step 5: Solve for x
    x = 4,276,378.39/2,219.91
  6. Step 6: Final answer
    x = 1,926.37

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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.