Home / 5,220.15-7,829.87-2,447.44

Finding the Fourth Proportional to 5,220.15, 7,829.87 and 2,447.44

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Solution

The fourth proportional to 5,220.15, 7,829.87 and 2,447.44 is: 3,670.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.15 : 7,829.87 = 2,447.44 : x
  2. Step 2: Convert to fraction form
    5,220.15/7,829.87 = 2,447.44/x
  3. Step 3: Cross multiply
    5,220.15x = 7,829.87 × 2,447.44
  4. Step 4: Simplify right side
    5,220.15x = 19,163,105.22
  5. Step 5: Solve for x
    x = 19,163,105.22/5,220.15
  6. Step 6: Final answer
    x = 3,670.99

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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.