Home / 2,186.86-3,277.55-1,722.81

Finding the Fourth Proportional to 2,186.86, 3,277.55 and 1,722.81

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Solution

The fourth proportional to 2,186.86, 3,277.55 and 1,722.81 is: 2,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.86 : 3,277.55 = 1,722.81 : x
  2. Step 2: Convert to fraction form
    2,186.86/3,277.55 = 1,722.81/x
  3. Step 3: Cross multiply
    2,186.86x = 3,277.55 × 1,722.81
  4. Step 4: Simplify right side
    2,186.86x = 5,646,583.41
  5. Step 5: Solve for x
    x = 5,646,583.41/2,186.86
  6. Step 6: Final answer
    x = 2,582.05

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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.