Home / 3,857.28-5,331.79-3,551.10

Finding the Fourth Proportional to 3,857.28, 5,331.79 and 3,551.10

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Solution

The fourth proportional to 3,857.28, 5,331.79 and 3,551.10 is: 4,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.28 : 5,331.79 = 3,551.10 : x
  2. Step 2: Convert to fraction form
    3,857.28/5,331.79 = 3,551.10/x
  3. Step 3: Cross multiply
    3,857.28x = 5,331.79 × 3,551.10
  4. Step 4: Simplify right side
    3,857.28x = 18,933,719.47
  5. Step 5: Solve for x
    x = 18,933,719.47/3,857.28
  6. Step 6: Final answer
    x = 4,908.57

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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.