Home / 6,926.40-10,390-1,995.92

Finding the Fourth Proportional to 6,926.40, 10,390 and 1,995.92

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Solution

The fourth proportional to 6,926.40, 10,390 and 1,995.92 is: 2,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926.40 : 10,390 = 1,995.92 : x
  2. Step 2: Convert to fraction form
    6,926.40/10,390 = 1,995.92/x
  3. Step 3: Cross multiply
    6,926.40x = 10,390 × 1,995.92
  4. Step 4: Simplify right side
    6,926.40x = 20,737,608.80
  5. Step 5: Solve for x
    x = 20,737,608.80/6,926.40
  6. Step 6: Final answer
    x = 2,994.00

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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.