Home / 3,189.61-4,783.11-1,109.26

Finding the Fourth Proportional to 3,189.61, 4,783.11 and 1,109.26

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Solution

The fourth proportional to 3,189.61, 4,783.11 and 1,109.26 is: 1,663.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.61 : 4,783.11 = 1,109.26 : x
  2. Step 2: Convert to fraction form
    3,189.61/4,783.11 = 1,109.26/x
  3. Step 3: Cross multiply
    3,189.61x = 4,783.11 × 1,109.26
  4. Step 4: Simplify right side
    3,189.61x = 5,305,712.60
  5. Step 5: Solve for x
    x = 5,305,712.60/3,189.61
  6. Step 6: Final answer
    x = 1,663.44

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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.