Home / 5,240.44-7,231.81-3,144.56

Finding the Fourth Proportional to 5,240.44, 7,231.81 and 3,144.56

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Solution

The fourth proportional to 5,240.44, 7,231.81 and 3,144.56 is: 4,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.44 : 7,231.81 = 3,144.56 : x
  2. Step 2: Convert to fraction form
    5,240.44/7,231.81 = 3,144.56/x
  3. Step 3: Cross multiply
    5,240.44x = 7,231.81 × 3,144.56
  4. Step 4: Simplify right side
    5,240.44x = 22,740,870.67
  5. Step 5: Solve for x
    x = 22,740,870.67/5,240.44
  6. Step 6: Final answer
    x = 4,339.50

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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.