Home / 3,133.31-4,700.43-941.78

Finding the Fourth Proportional to 3,133.31, 4,700.43 and 941.78

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Solution

The fourth proportional to 3,133.31, 4,700.43 and 941.78 is: 1,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.31 : 4,700.43 = 941.78 : x
  2. Step 2: Convert to fraction form
    3,133.31/4,700.43 = 941.78/x
  3. Step 3: Cross multiply
    3,133.31x = 4,700.43 × 941.78
  4. Step 4: Simplify right side
    3,133.31x = 4,426,770.97
  5. Step 5: Solve for x
    x = 4,426,770.97/3,133.31
  6. Step 6: Final answer
    x = 1,412.81

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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.