Home / 2,231.17-3,079.02-1,236.49

Finding the Fourth Proportional to 2,231.17, 3,079.02 and 1,236.49

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Solution

The fourth proportional to 2,231.17, 3,079.02 and 1,236.49 is: 1,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.17 : 3,079.02 = 1,236.49 : x
  2. Step 2: Convert to fraction form
    2,231.17/3,079.02 = 1,236.49/x
  3. Step 3: Cross multiply
    2,231.17x = 3,079.02 × 1,236.49
  4. Step 4: Simplify right side
    2,231.17x = 3,807,177.44
  5. Step 5: Solve for x
    x = 3,807,177.44/2,231.17
  6. Step 6: Final answer
    x = 1,706.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.