Home / 3,271.22-4,907.09-1,422.39

Finding the Fourth Proportional to 3,271.22, 4,907.09 and 1,422.39

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Solution

The fourth proportional to 3,271.22, 4,907.09 and 1,422.39 is: 2,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.22 : 4,907.09 = 1,422.39 : x
  2. Step 2: Convert to fraction form
    3,271.22/4,907.09 = 1,422.39/x
  3. Step 3: Cross multiply
    3,271.22x = 4,907.09 × 1,422.39
  4. Step 4: Simplify right side
    3,271.22x = 6,979,795.75
  5. Step 5: Solve for x
    x = 6,979,795.75/3,271.22
  6. Step 6: Final answer
    x = 2,133.70

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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.