Home / 5,297.72-7,310.31-3,172.82

Finding the Fourth Proportional to 5,297.72, 7,310.31 and 3,172.82

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Solution

The fourth proportional to 5,297.72, 7,310.31 and 3,172.82 is: 4,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.72 : 7,310.31 = 3,172.82 : x
  2. Step 2: Convert to fraction form
    5,297.72/7,310.31 = 3,172.82/x
  3. Step 3: Cross multiply
    5,297.72x = 7,310.31 × 3,172.82
  4. Step 4: Simplify right side
    5,297.72x = 23,194,261.22
  5. Step 5: Solve for x
    x = 23,194,261.22/5,297.72
  6. Step 6: Final answer
    x = 4,378.16

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1.5x scale

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.