Home / 5,175.45-7,748.21-4,641.31

Finding the Fourth Proportional to 5,175.45, 7,748.21 and 4,641.31

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Solution

The fourth proportional to 5,175.45, 7,748.21 and 4,641.31 is: 6,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.45 : 7,748.21 = 4,641.31 : x
  2. Step 2: Convert to fraction form
    5,175.45/7,748.21 = 4,641.31/x
  3. Step 3: Cross multiply
    5,175.45x = 7,748.21 × 4,641.31
  4. Step 4: Simplify right side
    5,175.45x = 35,961,844.56
  5. Step 5: Solve for x
    x = 35,961,844.56/5,175.45
  6. Step 6: Final answer
    x = 6,948.54

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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.