Home / 1,863.40-2,571.32-1,077.44

Finding the Fourth Proportional to 1,863.40, 2,571.32 and 1,077.44

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Solution

The fourth proportional to 1,863.40, 2,571.32 and 1,077.44 is: 1,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.40 : 2,571.32 = 1,077.44 : x
  2. Step 2: Convert to fraction form
    1,863.40/2,571.32 = 1,077.44/x
  3. Step 3: Cross multiply
    1,863.40x = 2,571.32 × 1,077.44
  4. Step 4: Simplify right side
    1,863.40x = 2,770,443.02
  5. Step 5: Solve for x
    x = 2,770,443.02/1,863.40
  6. Step 6: Final answer
    x = 1,486.77

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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.