Home / 6,949.78-10,411.60-3,435.70

Finding the Fourth Proportional to 6,949.78, 10,411.60 and 3,435.70

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Solution

The fourth proportional to 6,949.78, 10,411.60 and 3,435.70 is: 5,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949.78 : 10,411.60 = 3,435.70 : x
  2. Step 2: Convert to fraction form
    6,949.78/10,411.60 = 3,435.70/x
  3. Step 3: Cross multiply
    6,949.78x = 10,411.60 × 3,435.70
  4. Step 4: Simplify right side
    6,949.78x = 35,771,134.12
  5. Step 5: Solve for x
    x = 35,771,134.12/6,949.78
  6. Step 6: Final answer
    x = 5,147.09

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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.