Home / 3,008.37-4,512.15-1,821.72

Finding the Fourth Proportional to 3,008.37, 4,512.15 and 1,821.72

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Solution

The fourth proportional to 3,008.37, 4,512.15 and 1,821.72 is: 2,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.37 : 4,512.15 = 1,821.72 : x
  2. Step 2: Convert to fraction form
    3,008.37/4,512.15 = 1,821.72/x
  3. Step 3: Cross multiply
    3,008.37x = 4,512.15 × 1,821.72
  4. Step 4: Simplify right side
    3,008.37x = 8,219,873.90
  5. Step 5: Solve for x
    x = 8,219,873.90/3,008.37
  6. Step 6: Final answer
    x = 2,732.33

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1.5x scale

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.