Home / 3,326.20-4,991.10-1,477.60

Finding the Fourth Proportional to 3,326.20, 4,991.10 and 1,477.60

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Solution

The fourth proportional to 3,326.20, 4,991.10 and 1,477.60 is: 2,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.20 : 4,991.10 = 1,477.60 : x
  2. Step 2: Convert to fraction form
    3,326.20/4,991.10 = 1,477.60/x
  3. Step 3: Cross multiply
    3,326.20x = 4,991.10 × 1,477.60
  4. Step 4: Simplify right side
    3,326.20x = 7,374,849.36
  5. Step 5: Solve for x
    x = 7,374,849.36/3,326.20
  6. Step 6: Final answer
    x = 2,217.20

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1.5x scale

Why These Related Problems?

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