Home / 2,817.84-3,880.20-2,226.52

Finding the Fourth Proportional to 2,817.84, 3,880.20 and 2,226.52

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Solution

The fourth proportional to 2,817.84, 3,880.20 and 2,226.52 is: 3,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.84 : 3,880.20 = 2,226.52 : x
  2. Step 2: Convert to fraction form
    2,817.84/3,880.20 = 2,226.52/x
  3. Step 3: Cross multiply
    2,817.84x = 3,880.20 × 2,226.52
  4. Step 4: Simplify right side
    2,817.84x = 8,639,342.90
  5. Step 5: Solve for x
    x = 8,639,342.90/2,817.84
  6. Step 6: Final answer
    x = 3,065.95

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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.