Home / 6,628.47-9,147.24-3,644.31

Finding the Fourth Proportional to 6,628.47, 9,147.24 and 3,644.31

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Solution

The fourth proportional to 6,628.47, 9,147.24 and 3,644.31 is: 5,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.47 : 9,147.24 = 3,644.31 : x
  2. Step 2: Convert to fraction form
    6,628.47/9,147.24 = 3,644.31/x
  3. Step 3: Cross multiply
    6,628.47x = 9,147.24 × 3,644.31
  4. Step 4: Simplify right side
    6,628.47x = 33,335,378.20
  5. Step 5: Solve for x
    x = 33,335,378.20/6,628.47
  6. Step 6: Final answer
    x = 5,029.12

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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.