Home / 6,780.22-9,357.75-3,947.61

Finding the Fourth Proportional to 6,780.22, 9,357.75 and 3,947.61

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Solution

The fourth proportional to 6,780.22, 9,357.75 and 3,947.61 is: 5,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.22 : 9,357.75 = 3,947.61 : x
  2. Step 2: Convert to fraction form
    6,780.22/9,357.75 = 3,947.61/x
  3. Step 3: Cross multiply
    6,780.22x = 9,357.75 × 3,947.61
  4. Step 4: Simplify right side
    6,780.22x = 36,940,747.48
  5. Step 5: Solve for x
    x = 36,940,747.48/6,780.22
  6. Step 6: Final answer
    x = 5,448.31

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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.