Home / 3,271.38-4,907.05-1,813.61

Finding the Fourth Proportional to 3,271.38, 4,907.05 and 1,813.61

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Solution

The fourth proportional to 3,271.38, 4,907.05 and 1,813.61 is: 2,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.38 : 4,907.05 = 1,813.61 : x
  2. Step 2: Convert to fraction form
    3,271.38/4,907.05 = 1,813.61/x
  3. Step 3: Cross multiply
    3,271.38x = 4,907.05 × 1,813.61
  4. Step 4: Simplify right side
    3,271.38x = 8,899,474.95
  5. Step 5: Solve for x
    x = 8,899,474.95/3,271.38
  6. Step 6: Final answer
    x = 2,720.40

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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.