Home / 4,915.57-7,365.13-2,138.08

Finding the Fourth Proportional to 4,915.57, 7,365.13 and 2,138.08

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Solution

The fourth proportional to 4,915.57, 7,365.13 and 2,138.08 is: 3,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.57 : 7,365.13 = 2,138.08 : x
  2. Step 2: Convert to fraction form
    4,915.57/7,365.13 = 2,138.08/x
  3. Step 3: Cross multiply
    4,915.57x = 7,365.13 × 2,138.08
  4. Step 4: Simplify right side
    4,915.57x = 15,747,237.15
  5. Step 5: Solve for x
    x = 15,747,237.15/4,915.57
  6. Step 6: Final answer
    x = 3,203.54

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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.