Home / 2,076.26-3,113.85-615.07

Finding the Fourth Proportional to 2,076.26, 3,113.85 and 615.07

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Solution

The fourth proportional to 2,076.26, 3,113.85 and 615.07 is: 922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.26 : 3,113.85 = 615.07 : x
  2. Step 2: Convert to fraction form
    2,076.26/3,113.85 = 615.07/x
  3. Step 3: Cross multiply
    2,076.26x = 3,113.85 × 615.07
  4. Step 4: Simplify right side
    2,076.26x = 1,915,231.43
  5. Step 5: Solve for x
    x = 1,915,231.43/2,076.26
  6. Step 6: Final answer
    x = 922.44

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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.