Home / 5,149.26-7,720.10-2,551.60

Finding the Fourth Proportional to 5,149.26, 7,720.10 and 2,551.60

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Solution

The fourth proportional to 5,149.26, 7,720.10 and 2,551.60 is: 3,825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.26 : 7,720.10 = 2,551.60 : x
  2. Step 2: Convert to fraction form
    5,149.26/7,720.10 = 2,551.60/x
  3. Step 3: Cross multiply
    5,149.26x = 7,720.10 × 2,551.60
  4. Step 4: Simplify right side
    5,149.26x = 19,698,607.16
  5. Step 5: Solve for x
    x = 19,698,607.16/5,149.26
  6. Step 6: Final answer
    x = 3,825.52

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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.