Home / 6,628.31-9,147.17-3,644.12

Finding the Fourth Proportional to 6,628.31, 9,147.17 and 3,644.12

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Solution

The fourth proportional to 6,628.31, 9,147.17 and 3,644.12 is: 5,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.31 : 9,147.17 = 3,644.12 : x
  2. Step 2: Convert to fraction form
    6,628.31/9,147.17 = 3,644.12/x
  3. Step 3: Cross multiply
    6,628.31x = 9,147.17 × 3,644.12
  4. Step 4: Simplify right side
    6,628.31x = 33,333,385.14
  5. Step 5: Solve for x
    x = 33,333,385.14/6,628.31
  6. Step 6: Final answer
    x = 5,028.94

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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.