Home / 3,759.29-5,638.67-1,679.48

Finding the Fourth Proportional to 3,759.29, 5,638.67 and 1,679.48

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Solution

The fourth proportional to 3,759.29, 5,638.67 and 1,679.48 is: 2,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.29 : 5,638.67 = 1,679.48 : x
  2. Step 2: Convert to fraction form
    3,759.29/5,638.67 = 1,679.48/x
  3. Step 3: Cross multiply
    3,759.29x = 5,638.67 × 1,679.48
  4. Step 4: Simplify right side
    3,759.29x = 9,470,025.09
  5. Step 5: Solve for x
    x = 9,470,025.09/3,759.29
  6. Step 6: Final answer
    x = 2,519.10

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1.5x scale

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.