Home / 5,491.88-7,578.06-3,102.02

Finding the Fourth Proportional to 5,491.88, 7,578.06 and 3,102.02

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Solution

The fourth proportional to 5,491.88, 7,578.06 and 3,102.02 is: 4,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.88 : 7,578.06 = 3,102.02 : x
  2. Step 2: Convert to fraction form
    5,491.88/7,578.06 = 3,102.02/x
  3. Step 3: Cross multiply
    5,491.88x = 7,578.06 × 3,102.02
  4. Step 4: Simplify right side
    5,491.88x = 23,507,293.68
  5. Step 5: Solve for x
    x = 23,507,293.68/5,491.88
  6. Step 6: Final answer
    x = 4,280.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.