Home / 3,229.40-4,845.45-1,038.80

Finding the Fourth Proportional to 3,229.40, 4,845.45 and 1,038.80

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Solution

The fourth proportional to 3,229.40, 4,845.45 and 1,038.80 is: 1,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.40 : 4,845.45 = 1,038.80 : x
  2. Step 2: Convert to fraction form
    3,229.40/4,845.45 = 1,038.80/x
  3. Step 3: Cross multiply
    3,229.40x = 4,845.45 × 1,038.80
  4. Step 4: Simplify right side
    3,229.40x = 5,033,453.46
  5. Step 5: Solve for x
    x = 5,033,453.46/3,229.40
  6. Step 6: Final answer
    x = 1,558.63

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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.