Home / 3,410.02-5,121.51-2,120.50

Finding the Fourth Proportional to 3,410.02, 5,121.51 and 2,120.50

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Solution

The fourth proportional to 3,410.02, 5,121.51 and 2,120.50 is: 3,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.02 : 5,121.51 = 2,120.50 : x
  2. Step 2: Convert to fraction form
    3,410.02/5,121.51 = 2,120.50/x
  3. Step 3: Cross multiply
    3,410.02x = 5,121.51 × 2,120.50
  4. Step 4: Simplify right side
    3,410.02x = 10,860,161.96
  5. Step 5: Solve for x
    x = 10,860,161.96/3,410.02
  6. Step 6: Final answer
    x = 3,184.78

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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.