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Finding the Fourth Proportional to 2,775.77, 3,831.41 and 1,713.86

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Solution

The fourth proportional to 2,775.77, 3,831.41 and 1,713.86 is: 2,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.77 : 3,831.41 = 1,713.86 : x
  2. Step 2: Convert to fraction form
    2,775.77/3,831.41 = 1,713.86/x
  3. Step 3: Cross multiply
    2,775.77x = 3,831.41 × 1,713.86
  4. Step 4: Simplify right side
    2,775.77x = 6,566,500.34
  5. Step 5: Solve for x
    x = 6,566,500.34/2,775.77
  6. Step 6: Final answer
    x = 2,365.65

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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.