Home / 5,278.10-7,917.22-1,579.48

Finding the Fourth Proportional to 5,278.10, 7,917.22 and 1,579.48

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Solution

The fourth proportional to 5,278.10, 7,917.22 and 1,579.48 is: 2,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.10 : 7,917.22 = 1,579.48 : x
  2. Step 2: Convert to fraction form
    5,278.10/7,917.22 = 1,579.48/x
  3. Step 3: Cross multiply
    5,278.10x = 7,917.22 × 1,579.48
  4. Step 4: Simplify right side
    5,278.10x = 12,505,090.65
  5. Step 5: Solve for x
    x = 12,505,090.65/5,278.10
  6. Step 6: Final answer
    x = 2,369.24

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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.