Home / 5,406.76-8,111.28-3,067.81

Finding the Fourth Proportional to 5,406.76, 8,111.28 and 3,067.81

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Solution

The fourth proportional to 5,406.76, 8,111.28 and 3,067.81 is: 4,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.76 : 8,111.28 = 3,067.81 : x
  2. Step 2: Convert to fraction form
    5,406.76/8,111.28 = 3,067.81/x
  3. Step 3: Cross multiply
    5,406.76x = 8,111.28 × 3,067.81
  4. Step 4: Simplify right side
    5,406.76x = 24,883,865.90
  5. Step 5: Solve for x
    x = 24,883,865.90/5,406.76
  6. Step 6: Final answer
    x = 4,602.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.