Home / 2,126.54-2,933.93-1,286.93

Finding the Fourth Proportional to 2,126.54, 2,933.93 and 1,286.93

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Solution

The fourth proportional to 2,126.54, 2,933.93 and 1,286.93 is: 1,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.54 : 2,933.93 = 1,286.93 : x
  2. Step 2: Convert to fraction form
    2,126.54/2,933.93 = 1,286.93/x
  3. Step 3: Cross multiply
    2,126.54x = 2,933.93 × 1,286.93
  4. Step 4: Simplify right side
    2,126.54x = 3,775,757.26
  5. Step 5: Solve for x
    x = 3,775,757.26/2,126.54
  6. Step 6: Final answer
    x = 1,775.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.