Home / 5,438.87-7,505.62-3,081.03

Finding the Fourth Proportional to 5,438.87, 7,505.62 and 3,081.03

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Solution

The fourth proportional to 5,438.87, 7,505.62 and 3,081.03 is: 4,251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.87 : 7,505.62 = 3,081.03 : x
  2. Step 2: Convert to fraction form
    5,438.87/7,505.62 = 3,081.03/x
  3. Step 3: Cross multiply
    5,438.87x = 7,505.62 × 3,081.03
  4. Step 4: Simplify right side
    5,438.87x = 23,125,040.39
  5. Step 5: Solve for x
    x = 23,125,040.39/5,438.87
  6. Step 6: Final answer
    x = 4,251.81

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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.