Home / 2,863.96-4,257.32-2,779.88

Finding the Fourth Proportional to 2,863.96, 4,257.32 and 2,779.88

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Solution

The fourth proportional to 2,863.96, 4,257.32 and 2,779.88 is: 4,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.96 : 4,257.32 = 2,779.88 : x
  2. Step 2: Convert to fraction form
    2,863.96/4,257.32 = 2,779.88/x
  3. Step 3: Cross multiply
    2,863.96x = 4,257.32 × 2,779.88
  4. Step 4: Simplify right side
    2,863.96x = 11,834,838.72
  5. Step 5: Solve for x
    x = 11,834,838.72/2,863.96
  6. Step 6: Final answer
    x = 4,132.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.