Home / 3,022.28-4,531.55-1,981.02

Finding the Fourth Proportional to 3,022.28, 4,531.55 and 1,981.02

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Solution

The fourth proportional to 3,022.28, 4,531.55 and 1,981.02 is: 2,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.28 : 4,531.55 = 1,981.02 : x
  2. Step 2: Convert to fraction form
    3,022.28/4,531.55 = 1,981.02/x
  3. Step 3: Cross multiply
    3,022.28x = 4,531.55 × 1,981.02
  4. Step 4: Simplify right side
    3,022.28x = 8,977,091.18
  5. Step 5: Solve for x
    x = 8,977,091.18/3,022.28
  6. Step 6: Final answer
    x = 2,970.30

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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.