Home / 2,677.29-4,011.09-1,288.64

Finding the Fourth Proportional to 2,677.29, 4,011.09 and 1,288.64

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Solution

The fourth proportional to 2,677.29, 4,011.09 and 1,288.64 is: 1,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.29 : 4,011.09 = 1,288.64 : x
  2. Step 2: Convert to fraction form
    2,677.29/4,011.09 = 1,288.64/x
  3. Step 3: Cross multiply
    2,677.29x = 4,011.09 × 1,288.64
  4. Step 4: Simplify right side
    2,677.29x = 5,168,856.21
  5. Step 5: Solve for x
    x = 5,168,856.21/2,677.29
  6. Step 6: Final answer
    x = 1,930.63

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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.