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Finding the Fourth Proportional to 3,449.70, 4,760.60 and 1,877.79

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Solution

The fourth proportional to 3,449.70, 4,760.60 and 1,877.79 is: 2,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.70 : 4,760.60 = 1,877.79 : x
  2. Step 2: Convert to fraction form
    3,449.70/4,760.60 = 1,877.79/x
  3. Step 3: Cross multiply
    3,449.70x = 4,760.60 × 1,877.79
  4. Step 4: Simplify right side
    3,449.70x = 8,939,397.69
  5. Step 5: Solve for x
    x = 8,939,397.69/3,449.70
  6. Step 6: Final answer
    x = 2,591.36

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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.