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Finding the Fourth Proportional to 5,799.88, 8,003.76 and 3,147.28

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Solution

The fourth proportional to 5,799.88, 8,003.76 and 3,147.28 is: 4,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,799.88 : 8,003.76 = 3,147.28 : x
  2. Step 2: Convert to fraction form
    5,799.88/8,003.76 = 3,147.28/x
  3. Step 3: Cross multiply
    5,799.88x = 8,003.76 × 3,147.28
  4. Step 4: Simplify right side
    5,799.88x = 25,190,073.77
  5. Step 5: Solve for x
    x = 25,190,073.77/5,799.88
  6. Step 6: Final answer
    x = 4,343.21

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1.5x scale

Why These Related Problems?

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