Home / 3,905.80-5,861.67-1,442.95

Finding the Fourth Proportional to 3,905.80, 5,861.67 and 1,442.95

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Solution

The fourth proportional to 3,905.80, 5,861.67 and 1,442.95 is: 2,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.80 : 5,861.67 = 1,442.95 : x
  2. Step 2: Convert to fraction form
    3,905.80/5,861.67 = 1,442.95/x
  3. Step 3: Cross multiply
    3,905.80x = 5,861.67 × 1,442.95
  4. Step 4: Simplify right side
    3,905.80x = 8,458,096.73
  5. Step 5: Solve for x
    x = 8,458,096.73/3,905.80
  6. Step 6: Final answer
    x = 2,165.52

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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.