Home / 3,749.39-5,174.01-2,156.05

Finding the Fourth Proportional to 3,749.39, 5,174.01 and 2,156.05

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Solution

The fourth proportional to 3,749.39, 5,174.01 and 2,156.05 is: 2,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.39 : 5,174.01 = 2,156.05 : x
  2. Step 2: Convert to fraction form
    3,749.39/5,174.01 = 2,156.05/x
  3. Step 3: Cross multiply
    3,749.39x = 5,174.01 × 2,156.05
  4. Step 4: Simplify right side
    3,749.39x = 11,155,430.73
  5. Step 5: Solve for x
    x = 11,155,430.73/3,749.39
  6. Step 6: Final answer
    x = 2,975.27

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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.