Home / 4,791.96-7,178.34-2,191.32

Finding the Fourth Proportional to 4,791.96, 7,178.34 and 2,191.32

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Solution

The fourth proportional to 4,791.96, 7,178.34 and 2,191.32 is: 3,282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.96 : 7,178.34 = 2,191.32 : x
  2. Step 2: Convert to fraction form
    4,791.96/7,178.34 = 2,191.32/x
  3. Step 3: Cross multiply
    4,791.96x = 7,178.34 × 2,191.32
  4. Step 4: Simplify right side
    4,791.96x = 15,730,040.01
  5. Step 5: Solve for x
    x = 15,730,040.01/4,791.96
  6. Step 6: Final answer
    x = 3,282.59

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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.