Home / 2,084.80-3,127.20-851.94

Finding the Fourth Proportional to 2,084.80, 3,127.20 and 851.94

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Solution

The fourth proportional to 2,084.80, 3,127.20 and 851.94 is: 1,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.80 : 3,127.20 = 851.94 : x
  2. Step 2: Convert to fraction form
    2,084.80/3,127.20 = 851.94/x
  3. Step 3: Cross multiply
    2,084.80x = 3,127.20 × 851.94
  4. Step 4: Simplify right side
    2,084.80x = 2,664,166.87
  5. Step 5: Solve for x
    x = 2,664,166.87/2,084.80
  6. Step 6: Final answer
    x = 1,277.90

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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.