Home / 3,748.20-5,172.15-2,176.14

Finding the Fourth Proportional to 3,748.20, 5,172.15 and 2,176.14

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Solution

The fourth proportional to 3,748.20, 5,172.15 and 2,176.14 is: 3,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.20 : 5,172.15 = 2,176.14 : x
  2. Step 2: Convert to fraction form
    3,748.20/5,172.15 = 2,176.14/x
  3. Step 3: Cross multiply
    3,748.20x = 5,172.15 × 2,176.14
  4. Step 4: Simplify right side
    3,748.20x = 11,255,322.50
  5. Step 5: Solve for x
    x = 11,255,322.50/3,748.20
  6. Step 6: Final answer
    x = 3,002.86

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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.