Home / 7,860.93-11,791.23-3,180.89

Finding the Fourth Proportional to 7,860.93, 11,791.23 and 3,180.89

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Solution

The fourth proportional to 7,860.93, 11,791.23 and 3,180.89 is: 4,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.93 : 11,791.23 = 3,180.89 : x
  2. Step 2: Convert to fraction form
    7,860.93/11,791.23 = 3,180.89/x
  3. Step 3: Cross multiply
    7,860.93x = 11,791.23 × 3,180.89
  4. Step 4: Simplify right side
    7,860.93x = 37,506,546.64
  5. Step 5: Solve for x
    x = 37,506,546.64/7,860.93
  6. Step 6: Final answer
    x = 4,771.26

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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.