Home / 6,678.75-9,216.69-3,884.25

Finding the Fourth Proportional to 6,678.75, 9,216.69 and 3,884.25

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Solution

The fourth proportional to 6,678.75, 9,216.69 and 3,884.25 is: 5,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.75 : 9,216.69 = 3,884.25 : x
  2. Step 2: Convert to fraction form
    6,678.75/9,216.69 = 3,884.25/x
  3. Step 3: Cross multiply
    6,678.75x = 9,216.69 × 3,884.25
  4. Step 4: Simplify right side
    6,678.75x = 35,799,928.13
  5. Step 5: Solve for x
    x = 35,799,928.13/6,678.75
  6. Step 6: Final answer
    x = 5,360.27

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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.