Home / 2,155.12-3,232.17-694.29

Finding the Fourth Proportional to 2,155.12, 3,232.17 and 694.29

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Solution

The fourth proportional to 2,155.12, 3,232.17 and 694.29 is: 1,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.12 : 3,232.17 = 694.29 : x
  2. Step 2: Convert to fraction form
    2,155.12/3,232.17 = 694.29/x
  3. Step 3: Cross multiply
    2,155.12x = 3,232.17 × 694.29
  4. Step 4: Simplify right side
    2,155.12x = 2,244,063.31
  5. Step 5: Solve for x
    x = 2,244,063.31/2,155.12
  6. Step 6: Final answer
    x = 1,041.27

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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.