Home / 2,600.26-3,901.42-1,139.64

Finding the Fourth Proportional to 2,600.26, 3,901.42 and 1,139.64

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Solution

The fourth proportional to 2,600.26, 3,901.42 and 1,139.64 is: 1,709.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.26 : 3,901.42 = 1,139.64 : x
  2. Step 2: Convert to fraction form
    2,600.26/3,901.42 = 1,139.64/x
  3. Step 3: Cross multiply
    2,600.26x = 3,901.42 × 1,139.64
  4. Step 4: Simplify right side
    2,600.26x = 4,446,214.29
  5. Step 5: Solve for x
    x = 4,446,214.29/2,600.26
  6. Step 6: Final answer
    x = 1,709.91

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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.