Home / 1,863.36-2,571.43-1,012.61

Finding the Fourth Proportional to 1,863.36, 2,571.43 and 1,012.61

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Solution

The fourth proportional to 1,863.36, 2,571.43 and 1,012.61 is: 1,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.36 : 2,571.43 = 1,012.61 : x
  2. Step 2: Convert to fraction form
    1,863.36/2,571.43 = 1,012.61/x
  3. Step 3: Cross multiply
    1,863.36x = 2,571.43 × 1,012.61
  4. Step 4: Simplify right side
    1,863.36x = 2,603,855.73
  5. Step 5: Solve for x
    x = 2,603,855.73/1,863.36
  6. Step 6: Final answer
    x = 1,397.40

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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.