Home / 5,078.88-7,621.33-2,305.51

Finding the Fourth Proportional to 5,078.88, 7,621.33 and 2,305.51

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Solution

The fourth proportional to 5,078.88, 7,621.33 and 2,305.51 is: 3,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.88 : 7,621.33 = 2,305.51 : x
  2. Step 2: Convert to fraction form
    5,078.88/7,621.33 = 2,305.51/x
  3. Step 3: Cross multiply
    5,078.88x = 7,621.33 × 2,305.51
  4. Step 4: Simplify right side
    5,078.88x = 17,571,052.53
  5. Step 5: Solve for x
    x = 17,571,052.53/5,078.88
  6. Step 6: Final answer
    x = 3,459.63

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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.