Home / 2,155.31-3,232.66-694.27

Finding the Fourth Proportional to 2,155.31, 3,232.66 and 694.27

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Solution

The fourth proportional to 2,155.31, 3,232.66 and 694.27 is: 1,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.31 : 3,232.66 = 694.27 : x
  2. Step 2: Convert to fraction form
    2,155.31/3,232.66 = 694.27/x
  3. Step 3: Cross multiply
    2,155.31x = 3,232.66 × 694.27
  4. Step 4: Simplify right side
    2,155.31x = 2,244,342.47
  5. Step 5: Solve for x
    x = 2,244,342.47/2,155.31
  6. Step 6: Final answer
    x = 1,041.31

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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.