Home / 2,711.92-3,742.20-1,533.28

Finding the Fourth Proportional to 2,711.92, 3,742.20 and 1,533.28

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Solution

The fourth proportional to 2,711.92, 3,742.20 and 1,533.28 is: 2,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.92 : 3,742.20 = 1,533.28 : x
  2. Step 2: Convert to fraction form
    2,711.92/3,742.20 = 1,533.28/x
  3. Step 3: Cross multiply
    2,711.92x = 3,742.20 × 1,533.28
  4. Step 4: Simplify right side
    2,711.92x = 5,737,840.42
  5. Step 5: Solve for x
    x = 5,737,840.42/2,711.92
  6. Step 6: Final answer
    x = 2,115.79

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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.