Home / 3,189.21-4,776.86-2,261.96

Finding the Fourth Proportional to 3,189.21, 4,776.86 and 2,261.96

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Solution

The fourth proportional to 3,189.21, 4,776.86 and 2,261.96 is: 3,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.21 : 4,776.86 = 2,261.96 : x
  2. Step 2: Convert to fraction form
    3,189.21/4,776.86 = 2,261.96/x
  3. Step 3: Cross multiply
    3,189.21x = 4,776.86 × 2,261.96
  4. Step 4: Simplify right side
    3,189.21x = 10,805,031.05
  5. Step 5: Solve for x
    x = 10,805,031.05/3,189.21
  6. Step 6: Final answer
    x = 3,388.00

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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.