Home / 3,402.21-5,114.85-2,680.50

Finding the Fourth Proportional to 3,402.21, 5,114.85 and 2,680.50

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Solution

The fourth proportional to 3,402.21, 5,114.85 and 2,680.50 is: 4,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.21 : 5,114.85 = 2,680.50 : x
  2. Step 2: Convert to fraction form
    3,402.21/5,114.85 = 2,680.50/x
  3. Step 3: Cross multiply
    3,402.21x = 5,114.85 × 2,680.50
  4. Step 4: Simplify right side
    3,402.21x = 13,710,355.43
  5. Step 5: Solve for x
    x = 13,710,355.43/3,402.21
  6. Step 6: Final answer
    x = 4,029.84

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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.