Home / 3,768.70-5,200.30-2,090.02

Finding the Fourth Proportional to 3,768.70, 5,200.30 and 2,090.02

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Solution

The fourth proportional to 3,768.70, 5,200.30 and 2,090.02 is: 2,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.70 : 5,200.30 = 2,090.02 : x
  2. Step 2: Convert to fraction form
    3,768.70/5,200.30 = 2,090.02/x
  3. Step 3: Cross multiply
    3,768.70x = 5,200.30 × 2,090.02
  4. Step 4: Simplify right side
    3,768.70x = 10,868,731.01
  5. Step 5: Solve for x
    x = 10,868,731.01/3,768.70
  6. Step 6: Final answer
    x = 2,883.95

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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.