Home / 2,099.28-3,149.04-1,972.56

Finding the Fourth Proportional to 2,099.28, 3,149.04 and 1,972.56

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Solution

The fourth proportional to 2,099.28, 3,149.04 and 1,972.56 is: 2,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.28 : 3,149.04 = 1,972.56 : x
  2. Step 2: Convert to fraction form
    2,099.28/3,149.04 = 1,972.56/x
  3. Step 3: Cross multiply
    2,099.28x = 3,149.04 × 1,972.56
  4. Step 4: Simplify right side
    2,099.28x = 6,211,670.34
  5. Step 5: Solve for x
    x = 6,211,670.34/2,099.28
  6. Step 6: Final answer
    x = 2,958.95

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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.