Home / 5,695.82-7,860.24-3,177.86

Finding the Fourth Proportional to 5,695.82, 7,860.24 and 3,177.86

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Solution

The fourth proportional to 5,695.82, 7,860.24 and 3,177.86 is: 4,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.82 : 7,860.24 = 3,177.86 : x
  2. Step 2: Convert to fraction form
    5,695.82/7,860.24 = 3,177.86/x
  3. Step 3: Cross multiply
    5,695.82x = 7,860.24 × 3,177.86
  4. Step 4: Simplify right side
    5,695.82x = 24,978,742.29
  5. Step 5: Solve for x
    x = 24,978,742.29/5,695.82
  6. Step 6: Final answer
    x = 4,385.45

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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.