Home / 7,418.62-10,238.82-4,231.90

Finding the Fourth Proportional to 7,418.62, 10,238.82 and 4,231.90

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Solution

The fourth proportional to 7,418.62, 10,238.82 and 4,231.90 is: 5,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.62 : 10,238.82 = 4,231.90 : x
  2. Step 2: Convert to fraction form
    7,418.62/10,238.82 = 4,231.90/x
  3. Step 3: Cross multiply
    7,418.62x = 10,238.82 × 4,231.90
  4. Step 4: Simplify right side
    7,418.62x = 43,329,662.36
  5. Step 5: Solve for x
    x = 43,329,662.36/7,418.62
  6. Step 6: Final answer
    x = 5,840.66

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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.