Home / 2,076.30-3,114.56-615.46

Finding the Fourth Proportional to 2,076.30, 3,114.56 and 615.46

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Solution

The fourth proportional to 2,076.30, 3,114.56 and 615.46 is: 923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.30 : 3,114.56 = 615.46 : x
  2. Step 2: Convert to fraction form
    2,076.30/3,114.56 = 615.46/x
  3. Step 3: Cross multiply
    2,076.30x = 3,114.56 × 615.46
  4. Step 4: Simplify right side
    2,076.30x = 1,916,887.10
  5. Step 5: Solve for x
    x = 1,916,887.10/2,076.30
  6. Step 6: Final answer
    x = 923.22

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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.