Home / 1,308.23-1,961.02-615.27

Finding the Fourth Proportional to 1,308.23, 1,961.02 and 615.27

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Solution

The fourth proportional to 1,308.23, 1,961.02 and 615.27 is: 922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.23 : 1,961.02 = 615.27 : x
  2. Step 2: Convert to fraction form
    1,308.23/1,961.02 = 615.27/x
  3. Step 3: Cross multiply
    1,308.23x = 1,961.02 × 615.27
  4. Step 4: Simplify right side
    1,308.23x = 1,206,556.78
  5. Step 5: Solve for x
    x = 1,206,556.78/1,308.23
  6. Step 6: Final answer
    x = 922.28

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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.