Home / 3,919.56-5,406.64-2,592.78

Finding the Fourth Proportional to 3,919.56, 5,406.64 and 2,592.78

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Solution

The fourth proportional to 3,919.56, 5,406.64 and 2,592.78 is: 3,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.56 : 5,406.64 = 2,592.78 : x
  2. Step 2: Convert to fraction form
    3,919.56/5,406.64 = 2,592.78/x
  3. Step 3: Cross multiply
    3,919.56x = 5,406.64 × 2,592.78
  4. Step 4: Simplify right side
    3,919.56x = 14,018,228.06
  5. Step 5: Solve for x
    x = 14,018,228.06/3,919.56
  6. Step 6: Final answer
    x = 3,576.48

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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.