Home / 3,072.40-4,608.60-2,707.90

Finding the Fourth Proportional to 3,072.40, 4,608.60 and 2,707.90

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Solution

The fourth proportional to 3,072.40, 4,608.60 and 2,707.90 is: 4,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.40 : 4,608.60 = 2,707.90 : x
  2. Step 2: Convert to fraction form
    3,072.40/4,608.60 = 2,707.90/x
  3. Step 3: Cross multiply
    3,072.40x = 4,608.60 × 2,707.90
  4. Step 4: Simplify right side
    3,072.40x = 12,479,627.94
  5. Step 5: Solve for x
    x = 12,479,627.94/3,072.40
  6. Step 6: Final answer
    x = 4,061.85

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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.