Home / 3,620.64-5,428.23-2,889.82

Finding the Fourth Proportional to 3,620.64, 5,428.23 and 2,889.82

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Solution

The fourth proportional to 3,620.64, 5,428.23 and 2,889.82 is: 4,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.64 : 5,428.23 = 2,889.82 : x
  2. Step 2: Convert to fraction form
    3,620.64/5,428.23 = 2,889.82/x
  3. Step 3: Cross multiply
    3,620.64x = 5,428.23 × 2,889.82
  4. Step 4: Simplify right side
    3,620.64x = 15,686,607.62
  5. Step 5: Solve for x
    x = 15,686,607.62/3,620.64
  6. Step 6: Final answer
    x = 4,332.55

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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.