Home / 3,620.63-5,432.83-1,976.87

Finding the Fourth Proportional to 3,620.63, 5,432.83 and 1,976.87

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Solution

The fourth proportional to 3,620.63, 5,432.83 and 1,976.87 is: 2,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.63 : 5,432.83 = 1,976.87 : x
  2. Step 2: Convert to fraction form
    3,620.63/5,432.83 = 1,976.87/x
  3. Step 3: Cross multiply
    3,620.63x = 5,432.83 × 1,976.87
  4. Step 4: Simplify right side
    3,620.63x = 10,739,961.59
  5. Step 5: Solve for x
    x = 10,739,961.59/3,620.63
  6. Step 6: Final answer
    x = 2,966.33

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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.