Home / 3,783.12-5,220.56-2,104.56

Finding the Fourth Proportional to 3,783.12, 5,220.56 and 2,104.56

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Solution

The fourth proportional to 3,783.12, 5,220.56 and 2,104.56 is: 2,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.12 : 5,220.56 = 2,104.56 : x
  2. Step 2: Convert to fraction form
    3,783.12/5,220.56 = 2,104.56/x
  3. Step 3: Cross multiply
    3,783.12x = 5,220.56 × 2,104.56
  4. Step 4: Simplify right side
    3,783.12x = 10,986,981.75
  5. Step 5: Solve for x
    x = 10,986,981.75/3,783.12
  6. Step 6: Final answer
    x = 2,904.21

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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.