Home / 2,912.50-4,368.31-964.46

Finding the Fourth Proportional to 2,912.50, 4,368.31 and 964.46

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Solution

The fourth proportional to 2,912.50, 4,368.31 and 964.46 is: 1,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.50 : 4,368.31 = 964.46 : x
  2. Step 2: Convert to fraction form
    2,912.50/4,368.31 = 964.46/x
  3. Step 3: Cross multiply
    2,912.50x = 4,368.31 × 964.46
  4. Step 4: Simplify right side
    2,912.50x = 4,213,060.26
  5. Step 5: Solve for x
    x = 4,213,060.26/2,912.50
  6. Step 6: Final answer
    x = 1,446.54

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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.