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Finding the Fourth Proportional to 7,883.47, 10,879.96 and 5,890.57

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Solution

The fourth proportional to 7,883.47, 10,879.96 and 5,890.57 is: 8,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.47 : 10,879.96 = 5,890.57 : x
  2. Step 2: Convert to fraction form
    7,883.47/10,879.96 = 5,890.57/x
  3. Step 3: Cross multiply
    7,883.47x = 10,879.96 × 5,890.57
  4. Step 4: Simplify right side
    7,883.47x = 64,089,156.44
  5. Step 5: Solve for x
    x = 64,089,156.44/7,883.47
  6. Step 6: Final answer
    x = 8,129.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.