Home / 5,277.09-7,915.83-1,381.38

Finding the Fourth Proportional to 5,277.09, 7,915.83 and 1,381.38

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Solution

The fourth proportional to 5,277.09, 7,915.83 and 1,381.38 is: 2,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.09 : 7,915.83 = 1,381.38 : x
  2. Step 2: Convert to fraction form
    5,277.09/7,915.83 = 1,381.38/x
  3. Step 3: Cross multiply
    5,277.09x = 7,915.83 × 1,381.38
  4. Step 4: Simplify right side
    5,277.09x = 10,934,769.25
  5. Step 5: Solve for x
    x = 10,934,769.25/5,277.09
  6. Step 6: Final answer
    x = 2,072.12

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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.