Home / 5,241.45-7,851.88-3,481.21

Finding the Fourth Proportional to 5,241.45, 7,851.88 and 3,481.21

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Solution

The fourth proportional to 5,241.45, 7,851.88 and 3,481.21 is: 5,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.45 : 7,851.88 = 3,481.21 : x
  2. Step 2: Convert to fraction form
    5,241.45/7,851.88 = 3,481.21/x
  3. Step 3: Cross multiply
    5,241.45x = 7,851.88 × 3,481.21
  4. Step 4: Simplify right side
    5,241.45x = 27,334,043.17
  5. Step 5: Solve for x
    x = 27,334,043.17/5,241.45
  6. Step 6: Final answer
    x = 5,214.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.