Home / 2,001.22-2,762.94-1,372.80

Finding the Fourth Proportional to 2,001.22, 2,762.94 and 1,372.80

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Solution

The fourth proportional to 2,001.22, 2,762.94 and 1,372.80 is: 1,895.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.22 : 2,762.94 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    2,001.22/2,762.94 = 1,372.80/x
  3. Step 3: Cross multiply
    2,001.22x = 2,762.94 × 1,372.80
  4. Step 4: Simplify right side
    2,001.22x = 3,792,964.03
  5. Step 5: Solve for x
    x = 3,792,964.03/2,001.22
  6. Step 6: Final answer
    x = 1,895.33

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1.5x scale

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.