Home / 6,416.22-9,625.88-3,128.57

Finding the Fourth Proportional to 6,416.22, 9,625.88 and 3,128.57

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Solution

The fourth proportional to 6,416.22, 9,625.88 and 3,128.57 is: 4,693.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.22 : 9,625.88 = 3,128.57 : x
  2. Step 2: Convert to fraction form
    6,416.22/9,625.88 = 3,128.57/x
  3. Step 3: Cross multiply
    6,416.22x = 9,625.88 × 3,128.57
  4. Step 4: Simplify right side
    6,416.22x = 30,115,239.39
  5. Step 5: Solve for x
    x = 30,115,239.39/6,416.22
  6. Step 6: Final answer
    x = 4,693.61

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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.