Home / 1,392.43-2,084.54-1,028.84

Finding the Fourth Proportional to 1,392.43, 2,084.54 and 1,028.84

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Solution

The fourth proportional to 1,392.43, 2,084.54 and 1,028.84 is: 1,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.43 : 2,084.54 = 1,028.84 : x
  2. Step 2: Convert to fraction form
    1,392.43/2,084.54 = 1,028.84/x
  3. Step 3: Cross multiply
    1,392.43x = 2,084.54 × 1,028.84
  4. Step 4: Simplify right side
    1,392.43x = 2,144,652.99
  5. Step 5: Solve for x
    x = 2,144,652.99/1,392.43
  6. Step 6: Final answer
    x = 1,540.23

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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.