Home / 3,271.64-4,908.83-1,421.82

Finding the Fourth Proportional to 3,271.64, 4,908.83 and 1,421.82

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Solution

The fourth proportional to 3,271.64, 4,908.83 and 1,421.82 is: 2,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.64 : 4,908.83 = 1,421.82 : x
  2. Step 2: Convert to fraction form
    3,271.64/4,908.83 = 1,421.82/x
  3. Step 3: Cross multiply
    3,271.64x = 4,908.83 × 1,421.82
  4. Step 4: Simplify right side
    3,271.64x = 6,979,465.56
  5. Step 5: Solve for x
    x = 6,979,465.56/3,271.64
  6. Step 6: Final answer
    x = 2,133.33

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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.