Home / 3,210.28-4,806.72-1,668.04

Finding the Fourth Proportional to 3,210.28, 4,806.72 and 1,668.04

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Solution

The fourth proportional to 3,210.28, 4,806.72 and 1,668.04 is: 2,497.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.28 : 4,806.72 = 1,668.04 : x
  2. Step 2: Convert to fraction form
    3,210.28/4,806.72 = 1,668.04/x
  3. Step 3: Cross multiply
    3,210.28x = 4,806.72 × 1,668.04
  4. Step 4: Simplify right side
    3,210.28x = 8,017,801.23
  5. Step 5: Solve for x
    x = 8,017,801.23/3,210.28
  6. Step 6: Final answer
    x = 2,497.54

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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.