Home / 1,722.55-2,579.73-1,636.47

Finding the Fourth Proportional to 1,722.55, 2,579.73 and 1,636.47

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Solution

The fourth proportional to 1,722.55, 2,579.73 and 1,636.47 is: 2,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.55 : 2,579.73 = 1,636.47 : x
  2. Step 2: Convert to fraction form
    1,722.55/2,579.73 = 1,636.47/x
  3. Step 3: Cross multiply
    1,722.55x = 2,579.73 × 1,636.47
  4. Step 4: Simplify right side
    1,722.55x = 4,221,650.75
  5. Step 5: Solve for x
    x = 4,221,650.75/1,722.55
  6. Step 6: Final answer
    x = 2,450.81

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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.