Home / 2,157.62-3,232.86-2,076.70

Finding the Fourth Proportional to 2,157.62, 3,232.86 and 2,076.70

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Solution

The fourth proportional to 2,157.62, 3,232.86 and 2,076.70 is: 3,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.62 : 3,232.86 = 2,076.70 : x
  2. Step 2: Convert to fraction form
    2,157.62/3,232.86 = 2,076.70/x
  3. Step 3: Cross multiply
    2,157.62x = 3,232.86 × 2,076.70
  4. Step 4: Simplify right side
    2,157.62x = 6,713,680.36
  5. Step 5: Solve for x
    x = 6,713,680.36/2,157.62
  6. Step 6: Final answer
    x = 3,111.61

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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.