Home / 3,860.46-5,319.54-2,742.66

Finding the Fourth Proportional to 3,860.46, 5,319.54 and 2,742.66

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Solution

The fourth proportional to 3,860.46, 5,319.54 and 2,742.66 is: 3,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.46 : 5,319.54 = 2,742.66 : x
  2. Step 2: Convert to fraction form
    3,860.46/5,319.54 = 2,742.66/x
  3. Step 3: Cross multiply
    3,860.46x = 5,319.54 × 2,742.66
  4. Step 4: Simplify right side
    3,860.46x = 14,589,689.58
  5. Step 5: Solve for x
    x = 14,589,689.58/3,860.46
  6. Step 6: Final answer
    x = 3,779.26

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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.