Home / 2,023.21-3,034.85-636.51

Finding the Fourth Proportional to 2,023.21, 3,034.85 and 636.51

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Solution

The fourth proportional to 2,023.21, 3,034.85 and 636.51 is: 954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.21 : 3,034.85 = 636.51 : x
  2. Step 2: Convert to fraction form
    2,023.21/3,034.85 = 636.51/x
  3. Step 3: Cross multiply
    2,023.21x = 3,034.85 × 636.51
  4. Step 4: Simplify right side
    2,023.21x = 1,931,712.37
  5. Step 5: Solve for x
    x = 1,931,712.37/2,023.21
  6. Step 6: Final answer
    x = 954.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.