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Finding the Fourth Proportional to 5,879.88, 8,114.64 and 3,886.98

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Solution

The fourth proportional to 5,879.88, 8,114.64 and 3,886.98 is: 5,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.88 : 8,114.64 = 3,886.98 : x
  2. Step 2: Convert to fraction form
    5,879.88/8,114.64 = 3,886.98/x
  3. Step 3: Cross multiply
    5,879.88x = 8,114.64 × 3,886.98
  4. Step 4: Simplify right side
    5,879.88x = 31,541,443.39
  5. Step 5: Solve for x
    x = 31,541,443.39/5,879.88
  6. Step 6: Final answer
    x = 5,364.30

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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.