Home / 2,972.96-4,099.68-2,176.41

Finding the Fourth Proportional to 2,972.96, 4,099.68 and 2,176.41

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Solution

The fourth proportional to 2,972.96, 4,099.68 and 2,176.41 is: 3,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.96 : 4,099.68 = 2,176.41 : x
  2. Step 2: Convert to fraction form
    2,972.96/4,099.68 = 2,176.41/x
  3. Step 3: Cross multiply
    2,972.96x = 4,099.68 × 2,176.41
  4. Step 4: Simplify right side
    2,972.96x = 8,922,584.55
  5. Step 5: Solve for x
    x = 8,922,584.55/2,972.96
  6. Step 6: Final answer
    x = 3,001.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.