Home / 5,174.77-7,140.81-2,936.44

Finding the Fourth Proportional to 5,174.77, 7,140.81 and 2,936.44

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Solution

The fourth proportional to 5,174.77, 7,140.81 and 2,936.44 is: 4,052.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.77 : 7,140.81 = 2,936.44 : x
  2. Step 2: Convert to fraction form
    5,174.77/7,140.81 = 2,936.44/x
  3. Step 3: Cross multiply
    5,174.77x = 7,140.81 × 2,936.44
  4. Step 4: Simplify right side
    5,174.77x = 20,968,560.12
  5. Step 5: Solve for x
    x = 20,968,560.12/5,174.77
  6. Step 6: Final answer
    x = 4,052.08

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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.