Home / 2,028.62-2,800-1,439.34

Finding the Fourth Proportional to 2,028.62, 2,800 and 1,439.34

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Solution

The fourth proportional to 2,028.62, 2,800 and 1,439.34 is: 1,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.62 : 2,800 = 1,439.34 : x
  2. Step 2: Convert to fraction form
    2,028.62/2,800 = 1,439.34/x
  3. Step 3: Cross multiply
    2,028.62x = 2,800 × 1,439.34
  4. Step 4: Simplify right side
    2,028.62x = 4,030,152
  5. Step 5: Solve for x
    x = 4,030,152/2,028.62
  6. Step 6: Final answer
    x = 1,986.65

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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.