Home / 3,899.85-5,848.05-1,266.39

Finding the Fourth Proportional to 3,899.85, 5,848.05 and 1,266.39

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Solution

The fourth proportional to 3,899.85, 5,848.05 and 1,266.39 is: 1,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.85 : 5,848.05 = 1,266.39 : x
  2. Step 2: Convert to fraction form
    3,899.85/5,848.05 = 1,266.39/x
  3. Step 3: Cross multiply
    3,899.85x = 5,848.05 × 1,266.39
  4. Step 4: Simplify right side
    3,899.85x = 7,405,912.04
  5. Step 5: Solve for x
    x = 7,405,912.04/3,899.85
  6. Step 6: Final answer
    x = 1,899.02

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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.