Home / 3,486.62-4,812.30-2,728.89

Finding the Fourth Proportional to 3,486.62, 4,812.30 and 2,728.89

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Solution

The fourth proportional to 3,486.62, 4,812.30 and 2,728.89 is: 3,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.62 : 4,812.30 = 2,728.89 : x
  2. Step 2: Convert to fraction form
    3,486.62/4,812.30 = 2,728.89/x
  3. Step 3: Cross multiply
    3,486.62x = 4,812.30 × 2,728.89
  4. Step 4: Simplify right side
    3,486.62x = 13,132,237.35
  5. Step 5: Solve for x
    x = 13,132,237.35/3,486.62
  6. Step 6: Final answer
    x = 3,766.47

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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.