Home / 1,722.62-2,583.94-1,089.60

Finding the Fourth Proportional to 1,722.62, 2,583.94 and 1,089.60

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Solution

The fourth proportional to 1,722.62, 2,583.94 and 1,089.60 is: 1,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.62 : 2,583.94 = 1,089.60 : x
  2. Step 2: Convert to fraction form
    1,722.62/2,583.94 = 1,089.60/x
  3. Step 3: Cross multiply
    1,722.62x = 2,583.94 × 1,089.60
  4. Step 4: Simplify right side
    1,722.62x = 2,815,461.02
  5. Step 5: Solve for x
    x = 2,815,461.02/1,722.62
  6. Step 6: Final answer
    x = 1,634.41

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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.