Home / 3,031.22-4,183.04-1,686.81

Finding the Fourth Proportional to 3,031.22, 4,183.04 and 1,686.81

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Solution

The fourth proportional to 3,031.22, 4,183.04 and 1,686.81 is: 2,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.22 : 4,183.04 = 1,686.81 : x
  2. Step 2: Convert to fraction form
    3,031.22/4,183.04 = 1,686.81/x
  3. Step 3: Cross multiply
    3,031.22x = 4,183.04 × 1,686.81
  4. Step 4: Simplify right side
    3,031.22x = 7,055,993.70
  5. Step 5: Solve for x
    x = 7,055,993.70/3,031.22
  6. Step 6: Final answer
    x = 2,327.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.