Home / 3,906.15-5,855.40-1,565.52

Finding the Fourth Proportional to 3,906.15, 5,855.40 and 1,565.52

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Solution

The fourth proportional to 3,906.15, 5,855.40 and 1,565.52 is: 2,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.15 : 5,855.40 = 1,565.52 : x
  2. Step 2: Convert to fraction form
    3,906.15/5,855.40 = 1,565.52/x
  3. Step 3: Cross multiply
    3,906.15x = 5,855.40 × 1,565.52
  4. Step 4: Simplify right side
    3,906.15x = 9,166,745.81
  5. Step 5: Solve for x
    x = 9,166,745.81/3,906.15
  6. Step 6: Final answer
    x = 2,346.75

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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.