Home / 5,418.26-8,130.64-2,340.26

Finding the Fourth Proportional to 5,418.26, 8,130.64 and 2,340.26

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Solution

The fourth proportional to 5,418.26, 8,130.64 and 2,340.26 is: 3,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.26 : 8,130.64 = 2,340.26 : x
  2. Step 2: Convert to fraction form
    5,418.26/8,130.64 = 2,340.26/x
  3. Step 3: Cross multiply
    5,418.26x = 8,130.64 × 2,340.26
  4. Step 4: Simplify right side
    5,418.26x = 19,027,811.57
  5. Step 5: Solve for x
    x = 19,027,811.57/5,418.26
  6. Step 6: Final answer
    x = 3,511.79

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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.