Home / 7,270.80-10,905.24-2,889.36

Finding the Fourth Proportional to 7,270.80, 10,905.24 and 2,889.36

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Solution

The fourth proportional to 7,270.80, 10,905.24 and 2,889.36 is: 4,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.80 : 10,905.24 = 2,889.36 : x
  2. Step 2: Convert to fraction form
    7,270.80/10,905.24 = 2,889.36/x
  3. Step 3: Cross multiply
    7,270.80x = 10,905.24 × 2,889.36
  4. Step 4: Simplify right side
    7,270.80x = 31,509,164.25
  5. Step 5: Solve for x
    x = 31,509,164.25/7,270.80
  6. Step 6: Final answer
    x = 4,333.66

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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.