Home / 3,022.78-4,532.30-1,981.52

Finding the Fourth Proportional to 3,022.78, 4,532.30 and 1,981.52

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Solution

The fourth proportional to 3,022.78, 4,532.30 and 1,981.52 is: 2,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.78 : 4,532.30 = 1,981.52 : x
  2. Step 2: Convert to fraction form
    3,022.78/4,532.30 = 1,981.52/x
  3. Step 3: Cross multiply
    3,022.78x = 4,532.30 × 1,981.52
  4. Step 4: Simplify right side
    3,022.78x = 8,980,843.10
  5. Step 5: Solve for x
    x = 8,980,843.10/3,022.78
  6. Step 6: Final answer
    x = 2,971.05

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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.