Home / 3,228.80-4,845.36-1,256.24

Finding the Fourth Proportional to 3,228.80, 4,845.36 and 1,256.24

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Solution

The fourth proportional to 3,228.80, 4,845.36 and 1,256.24 is: 1,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.80 : 4,845.36 = 1,256.24 : x
  2. Step 2: Convert to fraction form
    3,228.80/4,845.36 = 1,256.24/x
  3. Step 3: Cross multiply
    3,228.80x = 4,845.36 × 1,256.24
  4. Step 4: Simplify right side
    3,228.80x = 6,086,935.05
  5. Step 5: Solve for x
    x = 6,086,935.05/3,228.80
  6. Step 6: Final answer
    x = 1,885.20

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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.