Home / 2,076.26-3,114.28-615.20

Finding the Fourth Proportional to 2,076.26, 3,114.28 and 615.20

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Solution

The fourth proportional to 2,076.26, 3,114.28 and 615.20 is: 922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.26 : 3,114.28 = 615.20 : x
  2. Step 2: Convert to fraction form
    2,076.26/3,114.28 = 615.20/x
  3. Step 3: Cross multiply
    2,076.26x = 3,114.28 × 615.20
  4. Step 4: Simplify right side
    2,076.26x = 1,915,905.06
  5. Step 5: Solve for x
    x = 1,915,905.06/2,076.26
  6. Step 6: Final answer
    x = 922.77

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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.