Home / 6,629.78-9,149.05-3,645.54

Finding the Fourth Proportional to 6,629.78, 9,149.05 and 3,645.54

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Solution

The fourth proportional to 6,629.78, 9,149.05 and 3,645.54 is: 5,030.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.78 : 9,149.05 = 3,645.54 : x
  2. Step 2: Convert to fraction form
    6,629.78/9,149.05 = 3,645.54/x
  3. Step 3: Cross multiply
    6,629.78x = 9,149.05 × 3,645.54
  4. Step 4: Simplify right side
    6,629.78x = 33,353,227.74
  5. Step 5: Solve for x
    x = 33,353,227.74/6,629.78
  6. Step 6: Final answer
    x = 5,030.82

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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.