Home / 5,230.44-7,215.39-3,105.05

Finding the Fourth Proportional to 5,230.44, 7,215.39 and 3,105.05

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Solution

The fourth proportional to 5,230.44, 7,215.39 and 3,105.05 is: 4,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.44 : 7,215.39 = 3,105.05 : x
  2. Step 2: Convert to fraction form
    5,230.44/7,215.39 = 3,105.05/x
  3. Step 3: Cross multiply
    5,230.44x = 7,215.39 × 3,105.05
  4. Step 4: Simplify right side
    5,230.44x = 22,404,110.64
  5. Step 5: Solve for x
    x = 22,404,110.64/5,230.44
  6. Step 6: Final answer
    x = 4,283.41

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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.