Home / 3,630.81-5,448.19-2,810.69

Finding the Fourth Proportional to 3,630.81, 5,448.19 and 2,810.69

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Solution

The fourth proportional to 3,630.81, 5,448.19 and 2,810.69 is: 4,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.81 : 5,448.19 = 2,810.69 : x
  2. Step 2: Convert to fraction form
    3,630.81/5,448.19 = 2,810.69/x
  3. Step 3: Cross multiply
    3,630.81x = 5,448.19 × 2,810.69
  4. Step 4: Simplify right side
    3,630.81x = 15,313,173.15
  5. Step 5: Solve for x
    x = 15,313,173.15/3,630.81
  6. Step 6: Final answer
    x = 4,217.56

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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.