Home / 3,629.97-5,430.78-3,187.71

Finding the Fourth Proportional to 3,629.97, 5,430.78 and 3,187.71

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Solution

The fourth proportional to 3,629.97, 5,430.78 and 3,187.71 is: 4,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.97 : 5,430.78 = 3,187.71 : x
  2. Step 2: Convert to fraction form
    3,629.97/5,430.78 = 3,187.71/x
  3. Step 3: Cross multiply
    3,629.97x = 5,430.78 × 3,187.71
  4. Step 4: Simplify right side
    3,629.97x = 17,311,751.71
  5. Step 5: Solve for x
    x = 17,311,751.71/3,629.97
  6. Step 6: Final answer
    x = 4,769.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.