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Finding the Fourth Proportional to 3,994.60, 5,487.77 and 3,293.80

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Solution

The fourth proportional to 3,994.60, 5,487.77 and 3,293.80 is: 4,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.60 : 5,487.77 = 3,293.80 : x
  2. Step 2: Convert to fraction form
    3,994.60/5,487.77 = 3,293.80/x
  3. Step 3: Cross multiply
    3,994.60x = 5,487.77 × 3,293.80
  4. Step 4: Simplify right side
    3,994.60x = 18,075,616.83
  5. Step 5: Solve for x
    x = 18,075,616.83/3,994.60
  6. Step 6: Final answer
    x = 4,525.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.