Home / 5,087.90-7,615.65-3,629.90

Finding the Fourth Proportional to 5,087.90, 7,615.65 and 3,629.90

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Solution

The fourth proportional to 5,087.90, 7,615.65 and 3,629.90 is: 5,433.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.90 : 7,615.65 = 3,629.90 : x
  2. Step 2: Convert to fraction form
    5,087.90/7,615.65 = 3,629.90/x
  3. Step 3: Cross multiply
    5,087.90x = 7,615.65 × 3,629.90
  4. Step 4: Simplify right side
    5,087.90x = 27,644,047.94
  5. Step 5: Solve for x
    x = 27,644,047.94/5,087.90
  6. Step 6: Final answer
    x = 5,433.29

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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.