Home / 3,748.26-5,172.21-2,176.05

Finding the Fourth Proportional to 3,748.26, 5,172.21 and 2,176.05

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Solution

The fourth proportional to 3,748.26, 5,172.21 and 2,176.05 is: 3,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.26 : 5,172.21 = 2,176.05 : x
  2. Step 2: Convert to fraction form
    3,748.26/5,172.21 = 2,176.05/x
  3. Step 3: Cross multiply
    3,748.26x = 5,172.21 × 2,176.05
  4. Step 4: Simplify right side
    3,748.26x = 11,254,987.57
  5. Step 5: Solve for x
    x = 11,254,987.57/3,748.26
  6. Step 6: Final answer
    x = 3,002.72

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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.