Home / 3,883.75-5,359.63-2,205.20

Finding the Fourth Proportional to 3,883.75, 5,359.63 and 2,205.20

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Solution

The fourth proportional to 3,883.75, 5,359.63 and 2,205.20 is: 3,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.75 : 5,359.63 = 2,205.20 : x
  2. Step 2: Convert to fraction form
    3,883.75/5,359.63 = 2,205.20/x
  3. Step 3: Cross multiply
    3,883.75x = 5,359.63 × 2,205.20
  4. Step 4: Simplify right side
    3,883.75x = 11,819,056.08
  5. Step 5: Solve for x
    x = 11,819,056.08/3,883.75
  6. Step 6: Final answer
    x = 3,043.21

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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.