Home / 2,187.24-3,018.13-1,302.87

Finding the Fourth Proportional to 2,187.24, 3,018.13 and 1,302.87

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Solution

The fourth proportional to 2,187.24, 3,018.13 and 1,302.87 is: 1,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.24 : 3,018.13 = 1,302.87 : x
  2. Step 2: Convert to fraction form
    2,187.24/3,018.13 = 1,302.87/x
  3. Step 3: Cross multiply
    2,187.24x = 3,018.13 × 1,302.87
  4. Step 4: Simplify right side
    2,187.24x = 3,932,231.03
  5. Step 5: Solve for x
    x = 3,932,231.03/2,187.24
  6. Step 6: Final answer
    x = 1,797.81

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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.