Home / 3,768.84-5,201.21-2,090.45

Finding the Fourth Proportional to 3,768.84, 5,201.21 and 2,090.45

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Solution

The fourth proportional to 3,768.84, 5,201.21 and 2,090.45 is: 2,884.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.84 : 5,201.21 = 2,090.45 : x
  2. Step 2: Convert to fraction form
    3,768.84/5,201.21 = 2,090.45/x
  3. Step 3: Cross multiply
    3,768.84x = 5,201.21 × 2,090.45
  4. Step 4: Simplify right side
    3,768.84x = 10,872,832.99
  5. Step 5: Solve for x
    x = 10,872,832.99/3,768.84
  6. Step 6: Final answer
    x = 2,884.93

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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.