Home / 1,774.21-2,662.46-1,189.87

Finding the Fourth Proportional to 1,774.21, 2,662.46 and 1,189.87

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Solution

The fourth proportional to 1,774.21, 2,662.46 and 1,189.87 is: 1,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.21 : 2,662.46 = 1,189.87 : x
  2. Step 2: Convert to fraction form
    1,774.21/2,662.46 = 1,189.87/x
  3. Step 3: Cross multiply
    1,774.21x = 2,662.46 × 1,189.87
  4. Step 4: Simplify right side
    1,774.21x = 3,167,984.77
  5. Step 5: Solve for x
    x = 3,167,984.77/1,774.21
  6. Step 6: Final answer
    x = 1,785.57

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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.