Home / 3,148.22-4,718.46-1,391.33

Finding the Fourth Proportional to 3,148.22, 4,718.46 and 1,391.33

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Solution

The fourth proportional to 3,148.22, 4,718.46 and 1,391.33 is: 2,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.22 : 4,718.46 = 1,391.33 : x
  2. Step 2: Convert to fraction form
    3,148.22/4,718.46 = 1,391.33/x
  3. Step 3: Cross multiply
    3,148.22x = 4,718.46 × 1,391.33
  4. Step 4: Simplify right side
    3,148.22x = 6,564,946.75
  5. Step 5: Solve for x
    x = 6,564,946.75/3,148.22
  6. Step 6: Final answer
    x = 2,085.29

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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.