Home / 3,748.39-5,172.55-2,069.75

Finding the Fourth Proportional to 3,748.39, 5,172.55 and 2,069.75

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Solution

The fourth proportional to 3,748.39, 5,172.55 and 2,069.75 is: 2,856.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.39 : 5,172.55 = 2,069.75 : x
  2. Step 2: Convert to fraction form
    3,748.39/5,172.55 = 2,069.75/x
  3. Step 3: Cross multiply
    3,748.39x = 5,172.55 × 2,069.75
  4. Step 4: Simplify right side
    3,748.39x = 10,705,885.36
  5. Step 5: Solve for x
    x = 10,705,885.36/3,748.39
  6. Step 6: Final answer
    x = 2,856.13

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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.