Home / 3,428.96-4,729.14-2,101.73

Finding the Fourth Proportional to 3,428.96, 4,729.14 and 2,101.73

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Solution

The fourth proportional to 3,428.96, 4,729.14 and 2,101.73 is: 2,898.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.96 : 4,729.14 = 2,101.73 : x
  2. Step 2: Convert to fraction form
    3,428.96/4,729.14 = 2,101.73/x
  3. Step 3: Cross multiply
    3,428.96x = 4,729.14 × 2,101.73
  4. Step 4: Simplify right side
    3,428.96x = 9,939,351.77
  5. Step 5: Solve for x
    x = 9,939,351.77/3,428.96
  6. Step 6: Final answer
    x = 2,898.65

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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.