Home / 3,812.28-5,259.78-2,485.50

Finding the Fourth Proportional to 3,812.28, 5,259.78 and 2,485.50

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Solution

The fourth proportional to 3,812.28, 5,259.78 and 2,485.50 is: 3,429.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.28 : 5,259.78 = 2,485.50 : x
  2. Step 2: Convert to fraction form
    3,812.28/5,259.78 = 2,485.50/x
  3. Step 3: Cross multiply
    3,812.28x = 5,259.78 × 2,485.50
  4. Step 4: Simplify right side
    3,812.28x = 13,073,183.19
  5. Step 5: Solve for x
    x = 13,073,183.19/3,812.28
  6. Step 6: Final answer
    x = 3,429.23

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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.