Home / 2,908.28-4,012.12-1,963.77

Finding the Fourth Proportional to 2,908.28, 4,012.12 and 1,963.77

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Solution

The fourth proportional to 2,908.28, 4,012.12 and 1,963.77 is: 2,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.28 : 4,012.12 = 1,963.77 : x
  2. Step 2: Convert to fraction form
    2,908.28/4,012.12 = 1,963.77/x
  3. Step 3: Cross multiply
    2,908.28x = 4,012.12 × 1,963.77
  4. Step 4: Simplify right side
    2,908.28x = 7,878,865.74
  5. Step 5: Solve for x
    x = 7,878,865.74/2,908.28
  6. Step 6: Final answer
    x = 2,709.12

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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.