Home / 3,723.28-5,138-2,398.32

Finding the Fourth Proportional to 3,723.28, 5,138 and 2,398.32

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Solution

The fourth proportional to 3,723.28, 5,138 and 2,398.32 is: 3,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.28 : 5,138 = 2,398.32 : x
  2. Step 2: Convert to fraction form
    3,723.28/5,138 = 2,398.32/x
  3. Step 3: Cross multiply
    3,723.28x = 5,138 × 2,398.32
  4. Step 4: Simplify right side
    3,723.28x = 12,322,568.16
  5. Step 5: Solve for x
    x = 12,322,568.16/3,723.28
  6. Step 6: Final answer
    x = 3,309.60

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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.