Home / 6,929.74-10,391.52-1,998.21

Finding the Fourth Proportional to 6,929.74, 10,391.52 and 1,998.21

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Solution

The fourth proportional to 6,929.74, 10,391.52 and 1,998.21 is: 2,996.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.74 : 10,391.52 = 1,998.21 : x
  2. Step 2: Convert to fraction form
    6,929.74/10,391.52 = 1,998.21/x
  3. Step 3: Cross multiply
    6,929.74x = 10,391.52 × 1,998.21
  4. Step 4: Simplify right side
    6,929.74x = 20,764,439.18
  5. Step 5: Solve for x
    x = 20,764,439.18/6,929.74
  6. Step 6: Final answer
    x = 2,996.42

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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.