Home / 2,115.14-3,173.58-882.81

Finding the Fourth Proportional to 2,115.14, 3,173.58 and 882.81

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Solution

The fourth proportional to 2,115.14, 3,173.58 and 882.81 is: 1,324.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.14 : 3,173.58 = 882.81 : x
  2. Step 2: Convert to fraction form
    2,115.14/3,173.58 = 882.81/x
  3. Step 3: Cross multiply
    2,115.14x = 3,173.58 × 882.81
  4. Step 4: Simplify right side
    2,115.14x = 2,801,668.16
  5. Step 5: Solve for x
    x = 2,801,668.16/2,115.14
  6. Step 6: Final answer
    x = 1,324.58

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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.