Home / 2,863.10-4,290.60-1,628.66

Finding the Fourth Proportional to 2,863.10, 4,290.60 and 1,628.66

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Solution

The fourth proportional to 2,863.10, 4,290.60 and 1,628.66 is: 2,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.10 : 4,290.60 = 1,628.66 : x
  2. Step 2: Convert to fraction form
    2,863.10/4,290.60 = 1,628.66/x
  3. Step 3: Cross multiply
    2,863.10x = 4,290.60 × 1,628.66
  4. Step 4: Simplify right side
    2,863.10x = 6,987,928.60
  5. Step 5: Solve for x
    x = 6,987,928.60/2,863.10
  6. Step 6: Final answer
    x = 2,440.69

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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.