Home / 3,816.44-5,268.30-2,491.28

Finding the Fourth Proportional to 3,816.44, 5,268.30 and 2,491.28

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Solution

The fourth proportional to 3,816.44, 5,268.30 and 2,491.28 is: 3,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.44 : 5,268.30 = 2,491.28 : x
  2. Step 2: Convert to fraction form
    3,816.44/5,268.30 = 2,491.28/x
  3. Step 3: Cross multiply
    3,816.44x = 5,268.30 × 2,491.28
  4. Step 4: Simplify right side
    3,816.44x = 13,124,810.42
  5. Step 5: Solve for x
    x = 13,124,810.42/3,816.44
  6. Step 6: Final answer
    x = 3,439.02

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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.