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Finding the Fourth Proportional to 4,879.16, 6,733.34 and 2,889.68

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Solution

The fourth proportional to 4,879.16, 6,733.34 and 2,889.68 is: 3,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.16 : 6,733.34 = 2,889.68 : x
  2. Step 2: Convert to fraction form
    4,879.16/6,733.34 = 2,889.68/x
  3. Step 3: Cross multiply
    4,879.16x = 6,733.34 × 2,889.68
  4. Step 4: Simplify right side
    4,879.16x = 19,457,197.93
  5. Step 5: Solve for x
    x = 19,457,197.93/4,879.16
  6. Step 6: Final answer
    x = 3,987.82

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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.