Home / 5,220.02-7,829.68-2,447.31

Finding the Fourth Proportional to 5,220.02, 7,829.68 and 2,447.31

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Solution

The fourth proportional to 5,220.02, 7,829.68 and 2,447.31 is: 3,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.02 : 7,829.68 = 2,447.31 : x
  2. Step 2: Convert to fraction form
    5,220.02/7,829.68 = 2,447.31/x
  3. Step 3: Cross multiply
    5,220.02x = 7,829.68 × 2,447.31
  4. Step 4: Simplify right side
    5,220.02x = 19,161,654.16
  5. Step 5: Solve for x
    x = 19,161,654.16/5,220.02
  6. Step 6: Final answer
    x = 3,670.80

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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.