Home / 2,157.11-3,235.28-696.27

Finding the Fourth Proportional to 2,157.11, 3,235.28 and 696.27

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Solution

The fourth proportional to 2,157.11, 3,235.28 and 696.27 is: 1,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.11 : 3,235.28 = 696.27 : x
  2. Step 2: Convert to fraction form
    2,157.11/3,235.28 = 696.27/x
  3. Step 3: Cross multiply
    2,157.11x = 3,235.28 × 696.27
  4. Step 4: Simplify right side
    2,157.11x = 2,252,628.41
  5. Step 5: Solve for x
    x = 2,252,628.41/2,157.11
  6. Step 6: Final answer
    x = 1,044.28

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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.