Home / 3,769.87-5,202.20-2,091.15

Finding the Fourth Proportional to 3,769.87, 5,202.20 and 2,091.15

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Solution

The fourth proportional to 3,769.87, 5,202.20 and 2,091.15 is: 2,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.87 : 5,202.20 = 2,091.15 : x
  2. Step 2: Convert to fraction form
    3,769.87/5,202.20 = 2,091.15/x
  3. Step 3: Cross multiply
    3,769.87x = 5,202.20 × 2,091.15
  4. Step 4: Simplify right side
    3,769.87x = 10,878,585.76
  5. Step 5: Solve for x
    x = 10,878,585.76/3,769.87
  6. Step 6: Final answer
    x = 2,885.67

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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.