Home / 3,478.82-5,221.64-2,551.74

Finding the Fourth Proportional to 3,478.82, 5,221.64 and 2,551.74

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Solution

The fourth proportional to 3,478.82, 5,221.64 and 2,551.74 is: 3,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.82 : 5,221.64 = 2,551.74 : x
  2. Step 2: Convert to fraction form
    3,478.82/5,221.64 = 2,551.74/x
  3. Step 3: Cross multiply
    3,478.82x = 5,221.64 × 2,551.74
  4. Step 4: Simplify right side
    3,478.82x = 13,324,241.55
  5. Step 5: Solve for x
    x = 13,324,241.55/3,478.82
  6. Step 6: Final answer
    x = 3,830.11

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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.