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Finding the Fourth Proportional to 4,255, 6,383.40 and 1,333.06

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Solution

The fourth proportional to 4,255, 6,383.40 and 1,333.06 is: 1,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255 : 6,383.40 = 1,333.06 : x
  2. Step 2: Convert to fraction form
    4,255/6,383.40 = 1,333.06/x
  3. Step 3: Cross multiply
    4,255x = 6,383.40 × 1,333.06
  4. Step 4: Simplify right side
    4,255x = 8,509,455.20
  5. Step 5: Solve for x
    x = 8,509,455.20/4,255
  6. Step 6: Final answer
    x = 1,999.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.