Home / 3,748.70-5,172.84-2,176.64

Finding the Fourth Proportional to 3,748.70, 5,172.84 and 2,176.64

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Solution

The fourth proportional to 3,748.70, 5,172.84 and 2,176.64 is: 3,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.70 : 5,172.84 = 2,176.64 : x
  2. Step 2: Convert to fraction form
    3,748.70/5,172.84 = 2,176.64/x
  3. Step 3: Cross multiply
    3,748.70x = 5,172.84 × 2,176.64
  4. Step 4: Simplify right side
    3,748.70x = 11,259,410.46
  5. Step 5: Solve for x
    x = 11,259,410.46/3,748.70
  6. Step 6: Final answer
    x = 3,003.55

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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.