Home / 5,247.22-7,241.10-2,889.34

Finding the Fourth Proportional to 5,247.22, 7,241.10 and 2,889.34

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Solution

The fourth proportional to 5,247.22, 7,241.10 and 2,889.34 is: 3,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.22 : 7,241.10 = 2,889.34 : x
  2. Step 2: Convert to fraction form
    5,247.22/7,241.10 = 2,889.34/x
  3. Step 3: Cross multiply
    5,247.22x = 7,241.10 × 2,889.34
  4. Step 4: Simplify right side
    5,247.22x = 20,921,999.87
  5. Step 5: Solve for x
    x = 20,921,999.87/5,247.22
  6. Step 6: Final answer
    x = 3,987.25

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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.