Home / 3,749.16-5,174.57-2,156.88

Finding the Fourth Proportional to 3,749.16, 5,174.57 and 2,156.88

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Solution

The fourth proportional to 3,749.16, 5,174.57 and 2,156.88 is: 2,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.16 : 5,174.57 = 2,156.88 : x
  2. Step 2: Convert to fraction form
    3,749.16/5,174.57 = 2,156.88/x
  3. Step 3: Cross multiply
    3,749.16x = 5,174.57 × 2,156.88
  4. Step 4: Simplify right side
    3,749.16x = 11,160,915.76
  5. Step 5: Solve for x
    x = 11,160,915.76/3,749.16
  6. Step 6: Final answer
    x = 2,976.91

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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.