Home / 3,515.69-4,855.58-2,728.54

Finding the Fourth Proportional to 3,515.69, 4,855.58 and 2,728.54

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Solution

The fourth proportional to 3,515.69, 4,855.58 and 2,728.54 is: 3,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.69 : 4,855.58 = 2,728.54 : x
  2. Step 2: Convert to fraction form
    3,515.69/4,855.58 = 2,728.54/x
  3. Step 3: Cross multiply
    3,515.69x = 4,855.58 × 2,728.54
  4. Step 4: Simplify right side
    3,515.69x = 13,248,630.61
  5. Step 5: Solve for x
    x = 13,248,630.61/3,515.69
  6. Step 6: Final answer
    x = 3,768.43

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Half scale
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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.