Home / 6,930.30-10,395.45-1,999.95

Finding the Fourth Proportional to 6,930.30, 10,395.45 and 1,999.95

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Solution

The fourth proportional to 6,930.30, 10,395.45 and 1,999.95 is: 2,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.30 : 10,395.45 = 1,999.95 : x
  2. Step 2: Convert to fraction form
    6,930.30/10,395.45 = 1,999.95/x
  3. Step 3: Cross multiply
    6,930.30x = 10,395.45 × 1,999.95
  4. Step 4: Simplify right side
    6,930.30x = 20,790,380.23
  5. Step 5: Solve for x
    x = 20,790,380.23/6,930.30
  6. Step 6: Final answer
    x = 2,999.93

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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.