Home / 2,881.28-3,976.08-2,098.64

Finding the Fourth Proportional to 2,881.28, 3,976.08 and 2,098.64

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Solution

The fourth proportional to 2,881.28, 3,976.08 and 2,098.64 is: 2,896.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.28 : 3,976.08 = 2,098.64 : x
  2. Step 2: Convert to fraction form
    2,881.28/3,976.08 = 2,098.64/x
  3. Step 3: Cross multiply
    2,881.28x = 3,976.08 × 2,098.64
  4. Step 4: Simplify right side
    2,881.28x = 8,344,360.53
  5. Step 5: Solve for x
    x = 8,344,360.53/2,881.28
  6. Step 6: Final answer
    x = 2,896.06

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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.