Home / 2,936.40-4,403.76-2,112.24

Finding the Fourth Proportional to 2,936.40, 4,403.76 and 2,112.24

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Solution

The fourth proportional to 2,936.40, 4,403.76 and 2,112.24 is: 3,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.40 : 4,403.76 = 2,112.24 : x
  2. Step 2: Convert to fraction form
    2,936.40/4,403.76 = 2,112.24/x
  3. Step 3: Cross multiply
    2,936.40x = 4,403.76 × 2,112.24
  4. Step 4: Simplify right side
    2,936.40x = 9,301,798.02
  5. Step 5: Solve for x
    x = 9,301,798.02/2,936.40
  6. Step 6: Final answer
    x = 3,167.76

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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.