Home / 3,428.87-4,731.93-2,101.81

Finding the Fourth Proportional to 3,428.87, 4,731.93 and 2,101.81

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Solution

The fourth proportional to 3,428.87, 4,731.93 and 2,101.81 is: 2,900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.87 : 4,731.93 = 2,101.81 : x
  2. Step 2: Convert to fraction form
    3,428.87/4,731.93 = 2,101.81/x
  3. Step 3: Cross multiply
    3,428.87x = 4,731.93 × 2,101.81
  4. Step 4: Simplify right side
    3,428.87x = 9,945,624.45
  5. Step 5: Solve for x
    x = 9,945,624.45/3,428.87
  6. Step 6: Final answer
    x = 2,900.56

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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.