Home / 3,081.78-4,252.63-1,886.96

Finding the Fourth Proportional to 3,081.78, 4,252.63 and 1,886.96

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Solution

The fourth proportional to 3,081.78, 4,252.63 and 1,886.96 is: 2,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.78 : 4,252.63 = 1,886.96 : x
  2. Step 2: Convert to fraction form
    3,081.78/4,252.63 = 1,886.96/x
  3. Step 3: Cross multiply
    3,081.78x = 4,252.63 × 1,886.96
  4. Step 4: Simplify right side
    3,081.78x = 8,024,512.01
  5. Step 5: Solve for x
    x = 8,024,512.01/3,081.78
  6. Step 6: Final answer
    x = 2,603.86

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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.