Home / 6,679.31-9,218.07-4,028.90

Finding the Fourth Proportional to 6,679.31, 9,218.07 and 4,028.90

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Solution

The fourth proportional to 6,679.31, 9,218.07 and 4,028.90 is: 5,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.31 : 9,218.07 = 4,028.90 : x
  2. Step 2: Convert to fraction form
    6,679.31/9,218.07 = 4,028.90/x
  3. Step 3: Cross multiply
    6,679.31x = 9,218.07 × 4,028.90
  4. Step 4: Simplify right side
    6,679.31x = 37,138,636.13
  5. Step 5: Solve for x
    x = 37,138,636.13/6,679.31
  6. Step 6: Final answer
    x = 5,560.25

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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.