Home / 1,908.28-2,856.66-1,725.76

Finding the Fourth Proportional to 1,908.28, 2,856.66 and 1,725.76

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Solution

The fourth proportional to 1,908.28, 2,856.66 and 1,725.76 is: 2,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.28 : 2,856.66 = 1,725.76 : x
  2. Step 2: Convert to fraction form
    1,908.28/2,856.66 = 1,725.76/x
  3. Step 3: Cross multiply
    1,908.28x = 2,856.66 × 1,725.76
  4. Step 4: Simplify right side
    1,908.28x = 4,929,909.56
  5. Step 5: Solve for x
    x = 4,929,909.56/1,908.28
  6. Step 6: Final answer
    x = 2,583.43

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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.