Home / 3,189.12-4,783.96-997.26

Finding the Fourth Proportional to 3,189.12, 4,783.96 and 997.26

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Solution

The fourth proportional to 3,189.12, 4,783.96 and 997.26 is: 1,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.12 : 4,783.96 = 997.26 : x
  2. Step 2: Convert to fraction form
    3,189.12/4,783.96 = 997.26/x
  3. Step 3: Cross multiply
    3,189.12x = 4,783.96 × 997.26
  4. Step 4: Simplify right side
    3,189.12x = 4,770,851.95
  5. Step 5: Solve for x
    x = 4,770,851.95/3,189.12
  6. Step 6: Final answer
    x = 1,495.98

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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.