Home / 6,764.90-9,335.61-3,780.86

Finding the Fourth Proportional to 6,764.90, 9,335.61 and 3,780.86

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Solution

The fourth proportional to 6,764.90, 9,335.61 and 3,780.86 is: 5,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,764.90 : 9,335.61 = 3,780.86 : x
  2. Step 2: Convert to fraction form
    6,764.90/9,335.61 = 3,780.86/x
  3. Step 3: Cross multiply
    6,764.90x = 9,335.61 × 3,780.86
  4. Step 4: Simplify right side
    6,764.90x = 35,296,587.75
  5. Step 5: Solve for x
    x = 35,296,587.75/6,764.90
  6. Step 6: Final answer
    x = 5,217.61

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1.5x scale

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.