Home / 2,936.63-4,057.91-2,138.56

Finding the Fourth Proportional to 2,936.63, 4,057.91 and 2,138.56

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Solution

The fourth proportional to 2,936.63, 4,057.91 and 2,138.56 is: 2,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.63 : 4,057.91 = 2,138.56 : x
  2. Step 2: Convert to fraction form
    2,936.63/4,057.91 = 2,138.56/x
  3. Step 3: Cross multiply
    2,936.63x = 4,057.91 × 2,138.56
  4. Step 4: Simplify right side
    2,936.63x = 8,678,084.01
  5. Step 5: Solve for x
    x = 8,678,084.01/2,936.63
  6. Step 6: Final answer
    x = 2,955.12

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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.