Home / 2,157.14-3,235.82-923.69

Finding the Fourth Proportional to 2,157.14, 3,235.82 and 923.69

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Solution

The fourth proportional to 2,157.14, 3,235.82 and 923.69 is: 1,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.14 : 3,235.82 = 923.69 : x
  2. Step 2: Convert to fraction form
    2,157.14/3,235.82 = 923.69/x
  3. Step 3: Cross multiply
    2,157.14x = 3,235.82 × 923.69
  4. Step 4: Simplify right side
    2,157.14x = 2,988,873.78
  5. Step 5: Solve for x
    x = 2,988,873.78/2,157.14
  6. Step 6: Final answer
    x = 1,385.58

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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.