Home / 7,361.31-11,043.32-2,431.29

Finding the Fourth Proportional to 7,361.31, 11,043.32 and 2,431.29

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Solution

The fourth proportional to 7,361.31, 11,043.32 and 2,431.29 is: 3,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.31 : 11,043.32 = 2,431.29 : x
  2. Step 2: Convert to fraction form
    7,361.31/11,043.32 = 2,431.29/x
  3. Step 3: Cross multiply
    7,361.31x = 11,043.32 × 2,431.29
  4. Step 4: Simplify right side
    7,361.31x = 26,849,513.48
  5. Step 5: Solve for x
    x = 26,849,513.48/7,361.31
  6. Step 6: Final answer
    x = 3,647.38

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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.