Home / 5,579.21-7,699.39-3,061.28

Finding the Fourth Proportional to 5,579.21, 7,699.39 and 3,061.28

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Solution

The fourth proportional to 5,579.21, 7,699.39 and 3,061.28 is: 4,224.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.21 : 7,699.39 = 3,061.28 : x
  2. Step 2: Convert to fraction form
    5,579.21/7,699.39 = 3,061.28/x
  3. Step 3: Cross multiply
    5,579.21x = 7,699.39 × 3,061.28
  4. Step 4: Simplify right side
    5,579.21x = 23,569,974.13
  5. Step 5: Solve for x
    x = 23,569,974.13/5,579.21
  6. Step 6: Final answer
    x = 4,224.61

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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.