Home / 5,376.53-7,418.31-3,137.12

Finding the Fourth Proportional to 5,376.53, 7,418.31 and 3,137.12

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Solution

The fourth proportional to 5,376.53, 7,418.31 and 3,137.12 is: 4,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.53 : 7,418.31 = 3,137.12 : x
  2. Step 2: Convert to fraction form
    5,376.53/7,418.31 = 3,137.12/x
  3. Step 3: Cross multiply
    5,376.53x = 7,418.31 × 3,137.12
  4. Step 4: Simplify right side
    5,376.53x = 23,272,135.45
  5. Step 5: Solve for x
    x = 23,272,135.45/5,376.53
  6. Step 6: Final answer
    x = 4,328.47

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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.