Home / 2,208.37-3,311.44-747.07

Finding the Fourth Proportional to 2,208.37, 3,311.44 and 747.07

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Solution

The fourth proportional to 2,208.37, 3,311.44 and 747.07 is: 1,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.37 : 3,311.44 = 747.07 : x
  2. Step 2: Convert to fraction form
    2,208.37/3,311.44 = 747.07/x
  3. Step 3: Cross multiply
    2,208.37x = 3,311.44 × 747.07
  4. Step 4: Simplify right side
    2,208.37x = 2,473,877.48
  5. Step 5: Solve for x
    x = 2,473,877.48/2,208.37
  6. Step 6: Final answer
    x = 1,120.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.