Home / 3,749.76-5,174.28-2,177.55

Finding the Fourth Proportional to 3,749.76, 5,174.28 and 2,177.55

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Solution

The fourth proportional to 3,749.76, 5,174.28 and 2,177.55 is: 3,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.76 : 5,174.28 = 2,177.55 : x
  2. Step 2: Convert to fraction form
    3,749.76/5,174.28 = 2,177.55/x
  3. Step 3: Cross multiply
    3,749.76x = 5,174.28 × 2,177.55
  4. Step 4: Simplify right side
    3,749.76x = 11,267,253.41
  5. Step 5: Solve for x
    x = 11,267,253.41/3,749.76
  6. Step 6: Final answer
    x = 3,004.79

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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.