Home / 3,247.66-4,481.12-1,921.58

Finding the Fourth Proportional to 3,247.66, 4,481.12 and 1,921.58

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Solution

The fourth proportional to 3,247.66, 4,481.12 and 1,921.58 is: 2,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.66 : 4,481.12 = 1,921.58 : x
  2. Step 2: Convert to fraction form
    3,247.66/4,481.12 = 1,921.58/x
  3. Step 3: Cross multiply
    3,247.66x = 4,481.12 × 1,921.58
  4. Step 4: Simplify right side
    3,247.66x = 8,610,830.57
  5. Step 5: Solve for x
    x = 8,610,830.57/3,247.66
  6. Step 6: Final answer
    x = 2,651.40

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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.