Home / 7,072.24-10,608.40-2,911.60

Finding the Fourth Proportional to 7,072.24, 10,608.40 and 2,911.60

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Solution

The fourth proportional to 7,072.24, 10,608.40 and 2,911.60 is: 4,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.24 : 10,608.40 = 2,911.60 : x
  2. Step 2: Convert to fraction form
    7,072.24/10,608.40 = 2,911.60/x
  3. Step 3: Cross multiply
    7,072.24x = 10,608.40 × 2,911.60
  4. Step 4: Simplify right side
    7,072.24x = 30,887,417.44
  5. Step 5: Solve for x
    x = 30,887,417.44/7,072.24
  6. Step 6: Final answer
    x = 4,367.42

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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.