Home / 3,171.65-4,756.07-1,091.09

Finding the Fourth Proportional to 3,171.65, 4,756.07 and 1,091.09

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Solution

The fourth proportional to 3,171.65, 4,756.07 and 1,091.09 is: 1,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.65 : 4,756.07 = 1,091.09 : x
  2. Step 2: Convert to fraction form
    3,171.65/4,756.07 = 1,091.09/x
  3. Step 3: Cross multiply
    3,171.65x = 4,756.07 × 1,091.09
  4. Step 4: Simplify right side
    3,171.65x = 5,189,271.18
  5. Step 5: Solve for x
    x = 5,189,271.18/3,171.65
  6. Step 6: Final answer
    x = 1,636.15

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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.