Home / 3,786.18-5,222.55-2,605.20

Finding the Fourth Proportional to 3,786.18, 5,222.55 and 2,605.20

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Solution

The fourth proportional to 3,786.18, 5,222.55 and 2,605.20 is: 3,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.18 : 5,222.55 = 2,605.20 : x
  2. Step 2: Convert to fraction form
    3,786.18/5,222.55 = 2,605.20/x
  3. Step 3: Cross multiply
    3,786.18x = 5,222.55 × 2,605.20
  4. Step 4: Simplify right side
    3,786.18x = 13,605,787.26
  5. Step 5: Solve for x
    x = 13,605,787.26/3,786.18
  6. Step 6: Final answer
    x = 3,593.54

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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.