Home / 3,122.93-4,313.07-2,126.46

Finding the Fourth Proportional to 3,122.93, 4,313.07 and 2,126.46

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Solution

The fourth proportional to 3,122.93, 4,313.07 and 2,126.46 is: 2,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.93 : 4,313.07 = 2,126.46 : x
  2. Step 2: Convert to fraction form
    3,122.93/4,313.07 = 2,126.46/x
  3. Step 3: Cross multiply
    3,122.93x = 4,313.07 × 2,126.46
  4. Step 4: Simplify right side
    3,122.93x = 9,171,570.83
  5. Step 5: Solve for x
    x = 9,171,570.83/3,122.93
  6. Step 6: Final answer
    x = 2,936.85

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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.