Home / 3,271.21-4,908.90-1,191.01

Finding the Fourth Proportional to 3,271.21, 4,908.90 and 1,191.01

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Solution

The fourth proportional to 3,271.21, 4,908.90 and 1,191.01 is: 1,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.21 : 4,908.90 = 1,191.01 : x
  2. Step 2: Convert to fraction form
    3,271.21/4,908.90 = 1,191.01/x
  3. Step 3: Cross multiply
    3,271.21x = 4,908.90 × 1,191.01
  4. Step 4: Simplify right side
    3,271.21x = 5,846,543.03
  5. Step 5: Solve for x
    x = 5,846,543.03/3,271.21
  6. Step 6: Final answer
    x = 1,787.27

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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.