Home / 1,630.31-2,439.33-969.75

Finding the Fourth Proportional to 1,630.31, 2,439.33 and 969.75

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Solution

The fourth proportional to 1,630.31, 2,439.33 and 969.75 is: 1,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.31 : 2,439.33 = 969.75 : x
  2. Step 2: Convert to fraction form
    1,630.31/2,439.33 = 969.75/x
  3. Step 3: Cross multiply
    1,630.31x = 2,439.33 × 969.75
  4. Step 4: Simplify right side
    1,630.31x = 2,365,540.27
  5. Step 5: Solve for x
    x = 2,365,540.27/1,630.31
  6. Step 6: Final answer
    x = 1,450.98

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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.