Home / 2,688.11-3,709.39-1,508.96

Finding the Fourth Proportional to 2,688.11, 3,709.39 and 1,508.96

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Solution

The fourth proportional to 2,688.11, 3,709.39 and 1,508.96 is: 2,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.11 : 3,709.39 = 1,508.96 : x
  2. Step 2: Convert to fraction form
    2,688.11/3,709.39 = 1,508.96/x
  3. Step 3: Cross multiply
    2,688.11x = 3,709.39 × 1,508.96
  4. Step 4: Simplify right side
    2,688.11x = 5,597,302.59
  5. Step 5: Solve for x
    x = 5,597,302.59/2,688.11
  6. Step 6: Final answer
    x = 2,082.24

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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.