Home / 2,187.27-3,018.44-1,192.53

Finding the Fourth Proportional to 2,187.27, 3,018.44 and 1,192.53

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Solution

The fourth proportional to 2,187.27, 3,018.44 and 1,192.53 is: 1,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.27 : 3,018.44 = 1,192.53 : x
  2. Step 2: Convert to fraction form
    2,187.27/3,018.44 = 1,192.53/x
  3. Step 3: Cross multiply
    2,187.27x = 3,018.44 × 1,192.53
  4. Step 4: Simplify right side
    2,187.27x = 3,599,574.29
  5. Step 5: Solve for x
    x = 3,599,574.29/2,187.27
  6. Step 6: Final answer
    x = 1,645.69

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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.