Home / 6,780.90-9,356.66-3,796.86

Finding the Fourth Proportional to 6,780.90, 9,356.66 and 3,796.86

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Solution

The fourth proportional to 6,780.90, 9,356.66 and 3,796.86 is: 5,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.90 : 9,356.66 = 3,796.86 : x
  2. Step 2: Convert to fraction form
    6,780.90/9,356.66 = 3,796.86/x
  3. Step 3: Cross multiply
    6,780.90x = 9,356.66 × 3,796.86
  4. Step 4: Simplify right side
    6,780.90x = 35,525,909.10
  5. Step 5: Solve for x
    x = 35,525,909.10/6,780.90
  6. Step 6: Final answer
    x = 5,239.11

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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.