Home / 6,629.85-9,149.40-3,645.81

Finding the Fourth Proportional to 6,629.85, 9,149.40 and 3,645.81

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Solution

The fourth proportional to 6,629.85, 9,149.40 and 3,645.81 is: 5,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.85 : 9,149.40 = 3,645.81 : x
  2. Step 2: Convert to fraction form
    6,629.85/9,149.40 = 3,645.81/x
  3. Step 3: Cross multiply
    6,629.85x = 9,149.40 × 3,645.81
  4. Step 4: Simplify right side
    6,629.85x = 33,356,974.01
  5. Step 5: Solve for x
    x = 33,356,974.01/6,629.85
  6. Step 6: Final answer
    x = 5,031.33

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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.