Home / 3,782.22-5,219.01-2,103.21

Finding the Fourth Proportional to 3,782.22, 5,219.01 and 2,103.21

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Solution

The fourth proportional to 3,782.22, 5,219.01 and 2,103.21 is: 2,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.22 : 5,219.01 = 2,103.21 : x
  2. Step 2: Convert to fraction form
    3,782.22/5,219.01 = 2,103.21/x
  3. Step 3: Cross multiply
    3,782.22x = 5,219.01 × 2,103.21
  4. Step 4: Simplify right side
    3,782.22x = 10,976,674.02
  5. Step 5: Solve for x
    x = 10,976,674.02/3,782.22
  6. Step 6: Final answer
    x = 2,902.18

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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.