Home / 4,915.50-7,369.10-2,140.06

Finding the Fourth Proportional to 4,915.50, 7,369.10 and 2,140.06

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Solution

The fourth proportional to 4,915.50, 7,369.10 and 2,140.06 is: 3,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.50 : 7,369.10 = 2,140.06 : x
  2. Step 2: Convert to fraction form
    4,915.50/7,369.10 = 2,140.06/x
  3. Step 3: Cross multiply
    4,915.50x = 7,369.10 × 2,140.06
  4. Step 4: Simplify right side
    4,915.50x = 15,770,316.15
  5. Step 5: Solve for x
    x = 15,770,316.15/4,915.50
  6. Step 6: Final answer
    x = 3,208.28

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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.