Home / 5,121.06-7,671.40-3,946.98

Finding the Fourth Proportional to 5,121.06, 7,671.40 and 3,946.98

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Solution

The fourth proportional to 5,121.06, 7,671.40 and 3,946.98 is: 5,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.06 : 7,671.40 = 3,946.98 : x
  2. Step 2: Convert to fraction form
    5,121.06/7,671.40 = 3,946.98/x
  3. Step 3: Cross multiply
    5,121.06x = 7,671.40 × 3,946.98
  4. Step 4: Simplify right side
    5,121.06x = 30,278,862.37
  5. Step 5: Solve for x
    x = 30,278,862.37/5,121.06
  6. Step 6: Final answer
    x = 5,912.62

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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.