Home / 5,247.27-7,241.28-2,889.42

Finding the Fourth Proportional to 5,247.27, 7,241.28 and 2,889.42

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Solution

The fourth proportional to 5,247.27, 7,241.28 and 2,889.42 is: 3,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.27 : 7,241.28 = 2,889.42 : x
  2. Step 2: Convert to fraction form
    5,247.27/7,241.28 = 2,889.42/x
  3. Step 3: Cross multiply
    5,247.27x = 7,241.28 × 2,889.42
  4. Step 4: Simplify right side
    5,247.27x = 20,923,099.26
  5. Step 5: Solve for x
    x = 20,923,099.26/5,247.27
  6. Step 6: Final answer
    x = 3,987.43

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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.