Home / 3,410.20-5,115.30-2,802.70

Finding the Fourth Proportional to 3,410.20, 5,115.30 and 2,802.70

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Solution

The fourth proportional to 3,410.20, 5,115.30 and 2,802.70 is: 4,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.20 : 5,115.30 = 2,802.70 : x
  2. Step 2: Convert to fraction form
    3,410.20/5,115.30 = 2,802.70/x
  3. Step 3: Cross multiply
    3,410.20x = 5,115.30 × 2,802.70
  4. Step 4: Simplify right side
    3,410.20x = 14,336,651.31
  5. Step 5: Solve for x
    x = 14,336,651.31/3,410.20
  6. Step 6: Final answer
    x = 4,204.05

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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.