Home / 6,628.12-9,146.62-3,643.96

Finding the Fourth Proportional to 6,628.12, 9,146.62 and 3,643.96

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Solution

The fourth proportional to 6,628.12, 9,146.62 and 3,643.96 is: 5,028.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.12 : 9,146.62 = 3,643.96 : x
  2. Step 2: Convert to fraction form
    6,628.12/9,146.62 = 3,643.96/x
  3. Step 3: Cross multiply
    6,628.12x = 9,146.62 × 3,643.96
  4. Step 4: Simplify right side
    6,628.12x = 33,329,917.42
  5. Step 5: Solve for x
    x = 33,329,917.42/6,628.12
  6. Step 6: Final answer
    x = 5,028.56

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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.