Home / 3,162.42-4,743.64-1,429.02

Finding the Fourth Proportional to 3,162.42, 4,743.64 and 1,429.02

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Solution

The fourth proportional to 3,162.42, 4,743.64 and 1,429.02 is: 2,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.42 : 4,743.64 = 1,429.02 : x
  2. Step 2: Convert to fraction form
    3,162.42/4,743.64 = 1,429.02/x
  3. Step 3: Cross multiply
    3,162.42x = 4,743.64 × 1,429.02
  4. Step 4: Simplify right side
    3,162.42x = 6,778,756.43
  5. Step 5: Solve for x
    x = 6,778,756.43/3,162.42
  6. Step 6: Final answer
    x = 2,143.53

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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.