Home / 3,748.42-5,172.69-2,176.30

Finding the Fourth Proportional to 3,748.42, 5,172.69 and 2,176.30

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Solution

The fourth proportional to 3,748.42, 5,172.69 and 2,176.30 is: 3,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.42 : 5,172.69 = 2,176.30 : x
  2. Step 2: Convert to fraction form
    3,748.42/5,172.69 = 2,176.30/x
  3. Step 3: Cross multiply
    3,748.42x = 5,172.69 × 2,176.30
  4. Step 4: Simplify right side
    3,748.42x = 11,257,325.25
  5. Step 5: Solve for x
    x = 11,257,325.25/3,748.42
  6. Step 6: Final answer
    x = 3,003.22

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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.