Home / 5,190.30-7,791.60-4,095.42

Finding the Fourth Proportional to 5,190.30, 7,791.60 and 4,095.42

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Solution

The fourth proportional to 5,190.30, 7,791.60 and 4,095.42 is: 6,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.30 : 7,791.60 = 4,095.42 : x
  2. Step 2: Convert to fraction form
    5,190.30/7,791.60 = 4,095.42/x
  3. Step 3: Cross multiply
    5,190.30x = 7,791.60 × 4,095.42
  4. Step 4: Simplify right side
    5,190.30x = 31,909,874.47
  5. Step 5: Solve for x
    x = 31,909,874.47/5,190.30
  6. Step 6: Final answer
    x = 6,147.98

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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.