Home / 3,236.68-4,846.78-2,139.40

Finding the Fourth Proportional to 3,236.68, 4,846.78 and 2,139.40

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Solution

The fourth proportional to 3,236.68, 4,846.78 and 2,139.40 is: 3,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.68 : 4,846.78 = 2,139.40 : x
  2. Step 2: Convert to fraction form
    3,236.68/4,846.78 = 2,139.40/x
  3. Step 3: Cross multiply
    3,236.68x = 4,846.78 × 2,139.40
  4. Step 4: Simplify right side
    3,236.68x = 10,369,201.13
  5. Step 5: Solve for x
    x = 10,369,201.13/3,236.68
  6. Step 6: Final answer
    x = 3,203.65

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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.