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Finding the Fourth Proportional to 6,160.86, 8,501.56 and 3,889.55

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Solution

The fourth proportional to 6,160.86, 8,501.56 and 3,889.55 is: 5,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,160.86 : 8,501.56 = 3,889.55 : x
  2. Step 2: Convert to fraction form
    6,160.86/8,501.56 = 3,889.55/x
  3. Step 3: Cross multiply
    6,160.86x = 8,501.56 × 3,889.55
  4. Step 4: Simplify right side
    6,160.86x = 33,067,254.23
  5. Step 5: Solve for x
    x = 33,067,254.23/6,160.86
  6. Step 6: Final answer
    x = 5,367.31

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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.