Home / 4,554.60-6,823.80-2,821.20

Finding the Fourth Proportional to 4,554.60, 6,823.80 and 2,821.20

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Solution

The fourth proportional to 4,554.60, 6,823.80 and 2,821.20 is: 4,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,554.60 : 6,823.80 = 2,821.20 : x
  2. Step 2: Convert to fraction form
    4,554.60/6,823.80 = 2,821.20/x
  3. Step 3: Cross multiply
    4,554.60x = 6,823.80 × 2,821.20
  4. Step 4: Simplify right side
    4,554.60x = 19,251,304.56
  5. Step 5: Solve for x
    x = 19,251,304.56/4,554.60
  6. Step 6: Final answer
    x = 4,226.78

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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.