Home / 3,286.78-4,930.20-1,095.50

Finding the Fourth Proportional to 3,286.78, 4,930.20 and 1,095.50

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Solution

The fourth proportional to 3,286.78, 4,930.20 and 1,095.50 is: 1,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.78 : 4,930.20 = 1,095.50 : x
  2. Step 2: Convert to fraction form
    3,286.78/4,930.20 = 1,095.50/x
  3. Step 3: Cross multiply
    3,286.78x = 4,930.20 × 1,095.50
  4. Step 4: Simplify right side
    3,286.78x = 5,401,034.10
  5. Step 5: Solve for x
    x = 5,401,034.10/3,286.78
  6. Step 6: Final answer
    x = 1,643.26

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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.