Home / 3,211.11-4,811.54-1,730.30

Finding the Fourth Proportional to 3,211.11, 4,811.54 and 1,730.30

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Solution

The fourth proportional to 3,211.11, 4,811.54 and 1,730.30 is: 2,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.11 : 4,811.54 = 1,730.30 : x
  2. Step 2: Convert to fraction form
    3,211.11/4,811.54 = 1,730.30/x
  3. Step 3: Cross multiply
    3,211.11x = 4,811.54 × 1,730.30
  4. Step 4: Simplify right side
    3,211.11x = 8,325,374.95
  5. Step 5: Solve for x
    x = 8,325,374.95/3,211.11
  6. Step 6: Final answer
    x = 2,592.68

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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.