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Finding the Fourth Proportional to 4,739.50, 6,540.51 and 2,643.63

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Solution

The fourth proportional to 4,739.50, 6,540.51 and 2,643.63 is: 3,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.50 : 6,540.51 = 2,643.63 : x
  2. Step 2: Convert to fraction form
    4,739.50/6,540.51 = 2,643.63/x
  3. Step 3: Cross multiply
    4,739.50x = 6,540.51 × 2,643.63
  4. Step 4: Simplify right side
    4,739.50x = 17,290,688.45
  5. Step 5: Solve for x
    x = 17,290,688.45/4,739.50
  6. Step 6: Final answer
    x = 3,648.21

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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.