Home / 3,782.67-5,220.16-2,211.68

Finding the Fourth Proportional to 3,782.67, 5,220.16 and 2,211.68

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Solution

The fourth proportional to 3,782.67, 5,220.16 and 2,211.68 is: 3,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.67 : 5,220.16 = 2,211.68 : x
  2. Step 2: Convert to fraction form
    3,782.67/5,220.16 = 2,211.68/x
  3. Step 3: Cross multiply
    3,782.67x = 5,220.16 × 2,211.68
  4. Step 4: Simplify right side
    3,782.67x = 11,545,291.84
  5. Step 5: Solve for x
    x = 11,545,291.84/3,782.67
  6. Step 6: Final answer
    x = 3,052.15

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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.