Home / 4,310.88-6,466.64-1,391.28

Finding the Fourth Proportional to 4,310.88, 6,466.64 and 1,391.28

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Solution

The fourth proportional to 4,310.88, 6,466.64 and 1,391.28 is: 2,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,310.88 : 6,466.64 = 1,391.28 : x
  2. Step 2: Convert to fraction form
    4,310.88/6,466.64 = 1,391.28/x
  3. Step 3: Cross multiply
    4,310.88x = 6,466.64 × 1,391.28
  4. Step 4: Simplify right side
    4,310.88x = 8,996,906.90
  5. Step 5: Solve for x
    x = 8,996,906.90/4,310.88
  6. Step 6: Final answer
    x = 2,087.02

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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.