Home / 2,219.84-3,063.20-1,224.96

Finding the Fourth Proportional to 2,219.84, 3,063.20 and 1,224.96

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Solution

The fourth proportional to 2,219.84, 3,063.20 and 1,224.96 is: 1,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.84 : 3,063.20 = 1,224.96 : x
  2. Step 2: Convert to fraction form
    2,219.84/3,063.20 = 1,224.96/x
  3. Step 3: Cross multiply
    2,219.84x = 3,063.20 × 1,224.96
  4. Step 4: Simplify right side
    2,219.84x = 3,752,297.47
  5. Step 5: Solve for x
    x = 3,752,297.47/2,219.84
  6. Step 6: Final answer
    x = 1,690.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.