Home / 6,942.20-10,400.70-4,011.80

Finding the Fourth Proportional to 6,942.20, 10,400.70 and 4,011.80

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Solution

The fourth proportional to 6,942.20, 10,400.70 and 4,011.80 is: 6,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.20 : 10,400.70 = 4,011.80 : x
  2. Step 2: Convert to fraction form
    6,942.20/10,400.70 = 4,011.80/x
  3. Step 3: Cross multiply
    6,942.20x = 10,400.70 × 4,011.80
  4. Step 4: Simplify right side
    6,942.20x = 41,725,528.26
  5. Step 5: Solve for x
    x = 41,725,528.26/6,942.20
  6. Step 6: Final answer
    x = 6,010.42

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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.