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Finding the Fourth Proportional to 5,047.68, 6,965.74 and 2,809.68

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Solution

The fourth proportional to 5,047.68, 6,965.74 and 2,809.68 is: 3,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,047.68 : 6,965.74 = 2,809.68 : x
  2. Step 2: Convert to fraction form
    5,047.68/6,965.74 = 2,809.68/x
  3. Step 3: Cross multiply
    5,047.68x = 6,965.74 × 2,809.68
  4. Step 4: Simplify right side
    5,047.68x = 19,571,500.36
  5. Step 5: Solve for x
    x = 19,571,500.36/5,047.68
  6. Step 6: Final answer
    x = 3,877.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.