Home / 3,211.88-4,817.75-1,480.51

Finding the Fourth Proportional to 3,211.88, 4,817.75 and 1,480.51

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Solution

The fourth proportional to 3,211.88, 4,817.75 and 1,480.51 is: 2,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.88 : 4,817.75 = 1,480.51 : x
  2. Step 2: Convert to fraction form
    3,211.88/4,817.75 = 1,480.51/x
  3. Step 3: Cross multiply
    3,211.88x = 4,817.75 × 1,480.51
  4. Step 4: Simplify right side
    3,211.88x = 7,132,727.05
  5. Step 5: Solve for x
    x = 7,132,727.05/3,211.88
  6. Step 6: Final answer
    x = 2,220.73

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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.