Home / 6,629.78-9,149.06-3,645.60

Finding the Fourth Proportional to 6,629.78, 9,149.06 and 3,645.60

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Solution

The fourth proportional to 6,629.78, 9,149.06 and 3,645.60 is: 5,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.78 : 9,149.06 = 3,645.60 : x
  2. Step 2: Convert to fraction form
    6,629.78/9,149.06 = 3,645.60/x
  3. Step 3: Cross multiply
    6,629.78x = 9,149.06 × 3,645.60
  4. Step 4: Simplify right side
    6,629.78x = 33,353,813.14
  5. Step 5: Solve for x
    x = 33,353,813.14/6,629.78
  6. Step 6: Final answer
    x = 5,030.91

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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.