Home / 3,749.55-5,630.40-2,109.30

Finding the Fourth Proportional to 3,749.55, 5,630.40 and 2,109.30

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Solution

The fourth proportional to 3,749.55, 5,630.40 and 2,109.30 is: 3,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.55 : 5,630.40 = 2,109.30 : x
  2. Step 2: Convert to fraction form
    3,749.55/5,630.40 = 2,109.30/x
  3. Step 3: Cross multiply
    3,749.55x = 5,630.40 × 2,109.30
  4. Step 4: Simplify right side
    3,749.55x = 11,876,202.72
  5. Step 5: Solve for x
    x = 11,876,202.72/3,749.55
  6. Step 6: Final answer
    x = 3,167.37

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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.