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Finding the Fourth Proportional to 6,295.40, 9,443.31 and 1,912.85

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Solution

The fourth proportional to 6,295.40, 9,443.31 and 1,912.85 is: 2,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.40 : 9,443.31 = 1,912.85 : x
  2. Step 2: Convert to fraction form
    6,295.40/9,443.31 = 1,912.85/x
  3. Step 3: Cross multiply
    6,295.40x = 9,443.31 × 1,912.85
  4. Step 4: Simplify right side
    6,295.40x = 18,063,635.53
  5. Step 5: Solve for x
    x = 18,063,635.53/6,295.40
  6. Step 6: Final answer
    x = 2,869.34

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1.5x scale

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.