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Finding the Fourth Proportional to 5,647.35, 7,799.88 and 3,755.66

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Solution

The fourth proportional to 5,647.35, 7,799.88 and 3,755.66 is: 5,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.35 : 7,799.88 = 3,755.66 : x
  2. Step 2: Convert to fraction form
    5,647.35/7,799.88 = 3,755.66/x
  3. Step 3: Cross multiply
    5,647.35x = 7,799.88 × 3,755.66
  4. Step 4: Simplify right side
    5,647.35x = 29,293,658.32
  5. Step 5: Solve for x
    x = 29,293,658.32/5,647.35
  6. Step 6: Final answer
    x = 5,187.15

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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.