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Finding the Fourth Proportional to 2,766.86, 3,818.04 and 1,571.84

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Solution

The fourth proportional to 2,766.86, 3,818.04 and 1,571.84 is: 2,169.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.86 : 3,818.04 = 1,571.84 : x
  2. Step 2: Convert to fraction form
    2,766.86/3,818.04 = 1,571.84/x
  3. Step 3: Cross multiply
    2,766.86x = 3,818.04 × 1,571.84
  4. Step 4: Simplify right side
    2,766.86x = 6,001,347.99
  5. Step 5: Solve for x
    x = 6,001,347.99/2,766.86
  6. Step 6: Final answer
    x = 2,169.01

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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.