Home / 2,787.05-4,177.87-1,031.56

Finding the Fourth Proportional to 2,787.05, 4,177.87 and 1,031.56

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Solution

The fourth proportional to 2,787.05, 4,177.87 and 1,031.56 is: 1,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.05 : 4,177.87 = 1,031.56 : x
  2. Step 2: Convert to fraction form
    2,787.05/4,177.87 = 1,031.56/x
  3. Step 3: Cross multiply
    2,787.05x = 4,177.87 × 1,031.56
  4. Step 4: Simplify right side
    2,787.05x = 4,309,723.58
  5. Step 5: Solve for x
    x = 4,309,723.58/2,787.05
  6. Step 6: Final answer
    x = 1,546.34

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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.