Home / 7,152.25-10,731.62-3,453.79

Finding the Fourth Proportional to 7,152.25, 10,731.62 and 3,453.79

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Solution

The fourth proportional to 7,152.25, 10,731.62 and 3,453.79 is: 5,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.25 : 10,731.62 = 3,453.79 : x
  2. Step 2: Convert to fraction form
    7,152.25/10,731.62 = 3,453.79/x
  3. Step 3: Cross multiply
    7,152.25x = 10,731.62 × 3,453.79
  4. Step 4: Simplify right side
    7,152.25x = 37,064,761.84
  5. Step 5: Solve for x
    x = 37,064,761.84/7,152.25
  6. Step 6: Final answer
    x = 5,182.25

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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.