Home / 3,066.26-4,220.70-2,672.60

Finding the Fourth Proportional to 3,066.26, 4,220.70 and 2,672.60

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Solution

The fourth proportional to 3,066.26, 4,220.70 and 2,672.60 is: 3,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.26 : 4,220.70 = 2,672.60 : x
  2. Step 2: Convert to fraction form
    3,066.26/4,220.70 = 2,672.60/x
  3. Step 3: Cross multiply
    3,066.26x = 4,220.70 × 2,672.60
  4. Step 4: Simplify right side
    3,066.26x = 11,280,242.82
  5. Step 5: Solve for x
    x = 11,280,242.82/3,066.26
  6. Step 6: Final answer
    x = 3,678.83

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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.