Home / 4,142.58-5,715.36-2,813.97

Finding the Fourth Proportional to 4,142.58, 5,715.36 and 2,813.97

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Solution

The fourth proportional to 4,142.58, 5,715.36 and 2,813.97 is: 3,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.58 : 5,715.36 = 2,813.97 : x
  2. Step 2: Convert to fraction form
    4,142.58/5,715.36 = 2,813.97/x
  3. Step 3: Cross multiply
    4,142.58x = 5,715.36 × 2,813.97
  4. Step 4: Simplify right side
    4,142.58x = 16,082,851.58
  5. Step 5: Solve for x
    x = 16,082,851.58/4,142.58
  6. Step 6: Final answer
    x = 3,882.33

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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.