Home / 2,845.53-3,926.71-2,099.22

Finding the Fourth Proportional to 2,845.53, 3,926.71 and 2,099.22

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Solution

The fourth proportional to 2,845.53, 3,926.71 and 2,099.22 is: 2,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.53 : 3,926.71 = 2,099.22 : x
  2. Step 2: Convert to fraction form
    2,845.53/3,926.71 = 2,099.22/x
  3. Step 3: Cross multiply
    2,845.53x = 3,926.71 × 2,099.22
  4. Step 4: Simplify right side
    2,845.53x = 8,243,028.17
  5. Step 5: Solve for x
    x = 8,243,028.17/2,845.53
  6. Step 6: Final answer
    x = 2,896.83

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1.5x scale

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.