Home / 3,211.21-4,813.44-1,565.47

Finding the Fourth Proportional to 3,211.21, 4,813.44 and 1,565.47

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Solution

The fourth proportional to 3,211.21, 4,813.44 and 1,565.47 is: 2,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.21 : 4,813.44 = 1,565.47 : x
  2. Step 2: Convert to fraction form
    3,211.21/4,813.44 = 1,565.47/x
  3. Step 3: Cross multiply
    3,211.21x = 4,813.44 × 1,565.47
  4. Step 4: Simplify right side
    3,211.21x = 7,535,295.92
  5. Step 5: Solve for x
    x = 7,535,295.92/3,211.21
  6. Step 6: Final answer
    x = 2,346.56

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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.