Home / 5,418.88-8,124.40-3,659.52

Finding the Fourth Proportional to 5,418.88, 8,124.40 and 3,659.52

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Solution

The fourth proportional to 5,418.88, 8,124.40 and 3,659.52 is: 5,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.88 : 8,124.40 = 3,659.52 : x
  2. Step 2: Convert to fraction form
    5,418.88/8,124.40 = 3,659.52/x
  3. Step 3: Cross multiply
    5,418.88x = 8,124.40 × 3,659.52
  4. Step 4: Simplify right side
    5,418.88x = 29,731,404.29
  5. Step 5: Solve for x
    x = 29,731,404.29/5,418.88
  6. Step 6: Final answer
    x = 5,486.63

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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.