Home / 2,331.27-3,216.87-1,283.31

Finding the Fourth Proportional to 2,331.27, 3,216.87 and 1,283.31

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Solution

The fourth proportional to 2,331.27, 3,216.87 and 1,283.31 is: 1,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.27 : 3,216.87 = 1,283.31 : x
  2. Step 2: Convert to fraction form
    2,331.27/3,216.87 = 1,283.31/x
  3. Step 3: Cross multiply
    2,331.27x = 3,216.87 × 1,283.31
  4. Step 4: Simplify right side
    2,331.27x = 4,128,241.44
  5. Step 5: Solve for x
    x = 4,128,241.44/2,331.27
  6. Step 6: Final answer
    x = 1,770.81

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1.5x scale

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.