Home / 2,600.36-3,901.26-1,213.64

Finding the Fourth Proportional to 2,600.36, 3,901.26 and 1,213.64

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Solution

The fourth proportional to 2,600.36, 3,901.26 and 1,213.64 is: 1,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.36 : 3,901.26 = 1,213.64 : x
  2. Step 2: Convert to fraction form
    2,600.36/3,901.26 = 1,213.64/x
  3. Step 3: Cross multiply
    2,600.36x = 3,901.26 × 1,213.64
  4. Step 4: Simplify right side
    2,600.36x = 4,734,725.19
  5. Step 5: Solve for x
    x = 4,734,725.19/2,600.36
  6. Step 6: Final answer
    x = 1,820.80

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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.