Home / 3,249.70-4,872.80-1,028.12

Finding the Fourth Proportional to 3,249.70, 4,872.80 and 1,028.12

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Solution

The fourth proportional to 3,249.70, 4,872.80 and 1,028.12 is: 1,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.70 : 4,872.80 = 1,028.12 : x
  2. Step 2: Convert to fraction form
    3,249.70/4,872.80 = 1,028.12/x
  3. Step 3: Cross multiply
    3,249.70x = 4,872.80 × 1,028.12
  4. Step 4: Simplify right side
    3,249.70x = 5,009,818.00
  5. Step 5: Solve for x
    x = 5,009,818.00/3,249.70
  6. Step 6: Final answer
    x = 1,541.63

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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.