Home / 7,287.68-10,936.12-2,905.60

Finding the Fourth Proportional to 7,287.68, 10,936.12 and 2,905.60

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Solution

The fourth proportional to 7,287.68, 10,936.12 and 2,905.60 is: 4,360.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.68 : 10,936.12 = 2,905.60 : x
  2. Step 2: Convert to fraction form
    7,287.68/10,936.12 = 2,905.60/x
  3. Step 3: Cross multiply
    7,287.68x = 10,936.12 × 2,905.60
  4. Step 4: Simplify right side
    7,287.68x = 31,775,990.27
  5. Step 5: Solve for x
    x = 31,775,990.27/7,287.68
  6. Step 6: Final answer
    x = 4,360.23

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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.