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Finding the Fourth Proportional to 3,324.58, 4,987.08 and 1,679.20

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Solution

The fourth proportional to 3,324.58, 4,987.08 and 1,679.20 is: 2,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.58 : 4,987.08 = 1,679.20 : x
  2. Step 2: Convert to fraction form
    3,324.58/4,987.08 = 1,679.20/x
  3. Step 3: Cross multiply
    3,324.58x = 4,987.08 × 1,679.20
  4. Step 4: Simplify right side
    3,324.58x = 8,374,304.74
  5. Step 5: Solve for x
    x = 8,374,304.74/3,324.58
  6. Step 6: Final answer
    x = 2,518.91

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1.5x scale

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.