Home / 3,189.32-4,783.96-1,242.88

Finding the Fourth Proportional to 3,189.32, 4,783.96 and 1,242.88

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Solution

The fourth proportional to 3,189.32, 4,783.96 and 1,242.88 is: 1,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.32 : 4,783.96 = 1,242.88 : x
  2. Step 2: Convert to fraction form
    3,189.32/4,783.96 = 1,242.88/x
  3. Step 3: Cross multiply
    3,189.32x = 4,783.96 × 1,242.88
  4. Step 4: Simplify right side
    3,189.32x = 5,945,888.20
  5. Step 5: Solve for x
    x = 5,945,888.20/3,189.32
  6. Step 6: Final answer
    x = 1,864.31

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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.