Home / 7,140.35-10,706.67-2,208.66

Finding the Fourth Proportional to 7,140.35, 10,706.67 and 2,208.66

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Solution

The fourth proportional to 7,140.35, 10,706.67 and 2,208.66 is: 3,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.35 : 10,706.67 = 2,208.66 : x
  2. Step 2: Convert to fraction form
    7,140.35/10,706.67 = 2,208.66/x
  3. Step 3: Cross multiply
    7,140.35x = 10,706.67 × 2,208.66
  4. Step 4: Simplify right side
    7,140.35x = 23,647,393.76
  5. Step 5: Solve for x
    x = 23,647,393.76/7,140.35
  6. Step 6: Final answer
    x = 3,311.80

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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.