Home / 2,155.14-3,229.67-982.26

Finding the Fourth Proportional to 2,155.14, 3,229.67 and 982.26

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Solution

The fourth proportional to 2,155.14, 3,229.67 and 982.26 is: 1,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.14 : 3,229.67 = 982.26 : x
  2. Step 2: Convert to fraction form
    2,155.14/3,229.67 = 982.26/x
  3. Step 3: Cross multiply
    2,155.14x = 3,229.67 × 982.26
  4. Step 4: Simplify right side
    2,155.14x = 3,172,378.11
  5. Step 5: Solve for x
    x = 3,172,378.11/2,155.14
  6. Step 6: Final answer
    x = 1,472.01

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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.