Home / 3,610.62-5,415.78-1,977.52

Finding the Fourth Proportional to 3,610.62, 5,415.78 and 1,977.52

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Solution

The fourth proportional to 3,610.62, 5,415.78 and 1,977.52 is: 2,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.62 : 5,415.78 = 1,977.52 : x
  2. Step 2: Convert to fraction form
    3,610.62/5,415.78 = 1,977.52/x
  3. Step 3: Cross multiply
    3,610.62x = 5,415.78 × 1,977.52
  4. Step 4: Simplify right side
    3,610.62x = 10,709,813.27
  5. Step 5: Solve for x
    x = 10,709,813.27/3,610.62
  6. Step 6: Final answer
    x = 2,966.20

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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.