Home / 2,163.40-2,982.08-1,766.70

Finding the Fourth Proportional to 2,163.40, 2,982.08 and 1,766.70

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Solution

The fourth proportional to 2,163.40, 2,982.08 and 1,766.70 is: 2,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.40 : 2,982.08 = 1,766.70 : x
  2. Step 2: Convert to fraction form
    2,163.40/2,982.08 = 1,766.70/x
  3. Step 3: Cross multiply
    2,163.40x = 2,982.08 × 1,766.70
  4. Step 4: Simplify right side
    2,163.40x = 5,268,440.74
  5. Step 5: Solve for x
    x = 5,268,440.74/2,163.40
  6. Step 6: Final answer
    x = 2,435.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.