Home / 7,349.54-10,142.39-3,992.33

Finding the Fourth Proportional to 7,349.54, 10,142.39 and 3,992.33

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Solution

The fourth proportional to 7,349.54, 10,142.39 and 3,992.33 is: 5,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,349.54 : 10,142.39 = 3,992.33 : x
  2. Step 2: Convert to fraction form
    7,349.54/10,142.39 = 3,992.33/x
  3. Step 3: Cross multiply
    7,349.54x = 10,142.39 × 3,992.33
  4. Step 4: Simplify right side
    7,349.54x = 40,491,767.87
  5. Step 5: Solve for x
    x = 40,491,767.87/7,349.54
  6. Step 6: Final answer
    x = 5,509.43

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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.