Home / 3,038.36-4,190.78-2,936.75

Finding the Fourth Proportional to 3,038.36, 4,190.78 and 2,936.75

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Solution

The fourth proportional to 3,038.36, 4,190.78 and 2,936.75 is: 4,050.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.36 : 4,190.78 = 2,936.75 : x
  2. Step 2: Convert to fraction form
    3,038.36/4,190.78 = 2,936.75/x
  3. Step 3: Cross multiply
    3,038.36x = 4,190.78 × 2,936.75
  4. Step 4: Simplify right side
    3,038.36x = 12,307,259.55
  5. Step 5: Solve for x
    x = 12,307,259.55/3,038.36
  6. Step 6: Final answer
    x = 4,050.63

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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.