Home / 2,655.66-3,982.33-1,338.60

Finding the Fourth Proportional to 2,655.66, 3,982.33 and 1,338.60

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Solution

The fourth proportional to 2,655.66, 3,982.33 and 1,338.60 is: 2,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.66 : 3,982.33 = 1,338.60 : x
  2. Step 2: Convert to fraction form
    2,655.66/3,982.33 = 1,338.60/x
  3. Step 3: Cross multiply
    2,655.66x = 3,982.33 × 1,338.60
  4. Step 4: Simplify right side
    2,655.66x = 5,330,746.94
  5. Step 5: Solve for x
    x = 5,330,746.94/2,655.66
  6. Step 6: Final answer
    x = 2,007.32

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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.