Home / 3,638.46-5,021.28-2,066.88

Finding the Fourth Proportional to 3,638.46, 5,021.28 and 2,066.88

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Solution

The fourth proportional to 3,638.46, 5,021.28 and 2,066.88 is: 2,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.46 : 5,021.28 = 2,066.88 : x
  2. Step 2: Convert to fraction form
    3,638.46/5,021.28 = 2,066.88/x
  3. Step 3: Cross multiply
    3,638.46x = 5,021.28 × 2,066.88
  4. Step 4: Simplify right side
    3,638.46x = 10,378,383.21
  5. Step 5: Solve for x
    x = 10,378,383.21/3,638.46
  6. Step 6: Final answer
    x = 2,852.41

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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.