Home / 2,156.66-3,234.30-923.74

Finding the Fourth Proportional to 2,156.66, 3,234.30 and 923.74

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Solution

The fourth proportional to 2,156.66, 3,234.30 and 923.74 is: 1,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.66 : 3,234.30 = 923.74 : x
  2. Step 2: Convert to fraction form
    2,156.66/3,234.30 = 923.74/x
  3. Step 3: Cross multiply
    2,156.66x = 3,234.30 × 923.74
  4. Step 4: Simplify right side
    2,156.66x = 2,987,644.20
  5. Step 5: Solve for x
    x = 2,987,644.20/2,156.66
  6. Step 6: Final answer
    x = 1,385.31

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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.