Home / 5,247.56-7,241.61-2,857.49

Finding the Fourth Proportional to 5,247.56, 7,241.61 and 2,857.49

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Solution

The fourth proportional to 5,247.56, 7,241.61 and 2,857.49 is: 3,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.56 : 7,241.61 = 2,857.49 : x
  2. Step 2: Convert to fraction form
    5,247.56/7,241.61 = 2,857.49/x
  3. Step 3: Cross multiply
    5,247.56x = 7,241.61 × 2,857.49
  4. Step 4: Simplify right side
    5,247.56x = 20,692,829.82
  5. Step 5: Solve for x
    x = 20,692,829.82/5,247.56
  6. Step 6: Final answer
    x = 3,943.33

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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.