Home / 3,620.74-5,000.26-3,120.58

Finding the Fourth Proportional to 3,620.74, 5,000.26 and 3,120.58

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Solution

The fourth proportional to 3,620.74, 5,000.26 and 3,120.58 is: 4,309.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.74 : 5,000.26 = 3,120.58 : x
  2. Step 2: Convert to fraction form
    3,620.74/5,000.26 = 3,120.58/x
  3. Step 3: Cross multiply
    3,620.74x = 5,000.26 × 3,120.58
  4. Step 4: Simplify right side
    3,620.74x = 15,603,711.35
  5. Step 5: Solve for x
    x = 15,603,711.35/3,620.74
  6. Step 6: Final answer
    x = 4,309.54

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1.5x scale

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.