Home / 2,028.70-3,047.28-1,639.14

Finding the Fourth Proportional to 2,028.70, 3,047.28 and 1,639.14

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Solution

The fourth proportional to 2,028.70, 3,047.28 and 1,639.14 is: 2,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.70 : 3,047.28 = 1,639.14 : x
  2. Step 2: Convert to fraction form
    2,028.70/3,047.28 = 1,639.14/x
  3. Step 3: Cross multiply
    2,028.70x = 3,047.28 × 1,639.14
  4. Step 4: Simplify right side
    2,028.70x = 4,994,918.54
  5. Step 5: Solve for x
    x = 4,994,918.54/2,028.70
  6. Step 6: Final answer
    x = 2,462.13

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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.