Home / 2,126.03-3,189.78-956.84

Finding the Fourth Proportional to 2,126.03, 3,189.78 and 956.84

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Solution

The fourth proportional to 2,126.03, 3,189.78 and 956.84 is: 1,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.03 : 3,189.78 = 956.84 : x
  2. Step 2: Convert to fraction form
    2,126.03/3,189.78 = 956.84/x
  3. Step 3: Cross multiply
    2,126.03x = 3,189.78 × 956.84
  4. Step 4: Simplify right side
    2,126.03x = 3,052,093.15
  5. Step 5: Solve for x
    x = 3,052,093.15/2,126.03
  6. Step 6: Final answer
    x = 1,435.59

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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.