Home / 3,748.76-5,172.90-2,176.56

Finding the Fourth Proportional to 3,748.76, 5,172.90 and 2,176.56

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Solution

The fourth proportional to 3,748.76, 5,172.90 and 2,176.56 is: 3,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.76 : 5,172.90 = 2,176.56 : x
  2. Step 2: Convert to fraction form
    3,748.76/5,172.90 = 2,176.56/x
  3. Step 3: Cross multiply
    3,748.76x = 5,172.90 × 2,176.56
  4. Step 4: Simplify right side
    3,748.76x = 11,259,127.22
  5. Step 5: Solve for x
    x = 11,259,127.22/3,748.76
  6. Step 6: Final answer
    x = 3,003.43

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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.