Home / 4,915.12-7,371.16-1,627.54

Finding the Fourth Proportional to 4,915.12, 7,371.16 and 1,627.54

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Solution

The fourth proportional to 4,915.12, 7,371.16 and 1,627.54 is: 2,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.12 : 7,371.16 = 1,627.54 : x
  2. Step 2: Convert to fraction form
    4,915.12/7,371.16 = 1,627.54/x
  3. Step 3: Cross multiply
    4,915.12x = 7,371.16 × 1,627.54
  4. Step 4: Simplify right side
    4,915.12x = 11,996,857.75
  5. Step 5: Solve for x
    x = 11,996,857.75/4,915.12
  6. Step 6: Final answer
    x = 2,440.81

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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.