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Finding the Fourth Proportional to 3,804.95, 5,696.47 and 2,811.08

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Solution

The fourth proportional to 3,804.95, 5,696.47 and 2,811.08 is: 4,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,804.95 : 5,696.47 = 2,811.08 : x
  2. Step 2: Convert to fraction form
    3,804.95/5,696.47 = 2,811.08/x
  3. Step 3: Cross multiply
    3,804.95x = 5,696.47 × 2,811.08
  4. Step 4: Simplify right side
    3,804.95x = 16,013,250.64
  5. Step 5: Solve for x
    x = 16,013,250.64/3,804.95
  6. Step 6: Final answer
    x = 4,208.53

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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.