Home / 4,912.02-7,367.92-1,990.34

Finding the Fourth Proportional to 4,912.02, 7,367.92 and 1,990.34

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Solution

The fourth proportional to 4,912.02, 7,367.92 and 1,990.34 is: 2,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.02 : 7,367.92 = 1,990.34 : x
  2. Step 2: Convert to fraction form
    4,912.02/7,367.92 = 1,990.34/x
  3. Step 3: Cross multiply
    4,912.02x = 7,367.92 × 1,990.34
  4. Step 4: Simplify right side
    4,912.02x = 14,664,665.89
  5. Step 5: Solve for x
    x = 14,664,665.89/4,912.02
  6. Step 6: Final answer
    x = 2,985.47

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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.