Home / 3,324.35-4,987.34-1,680.86

Finding the Fourth Proportional to 3,324.35, 4,987.34 and 1,680.86

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Solution

The fourth proportional to 3,324.35, 4,987.34 and 1,680.86 is: 2,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.35 : 4,987.34 = 1,680.86 : x
  2. Step 2: Convert to fraction form
    3,324.35/4,987.34 = 1,680.86/x
  3. Step 3: Cross multiply
    3,324.35x = 4,987.34 × 1,680.86
  4. Step 4: Simplify right side
    3,324.35x = 8,383,020.31
  5. Step 5: Solve for x
    x = 8,383,020.31/3,324.35
  6. Step 6: Final answer
    x = 2,521.70

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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.