Home / 4,936.45-6,811.20-2,840.57

Finding the Fourth Proportional to 4,936.45, 6,811.20 and 2,840.57

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Solution

The fourth proportional to 4,936.45, 6,811.20 and 2,840.57 is: 3,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.45 : 6,811.20 = 2,840.57 : x
  2. Step 2: Convert to fraction form
    4,936.45/6,811.20 = 2,840.57/x
  3. Step 3: Cross multiply
    4,936.45x = 6,811.20 × 2,840.57
  4. Step 4: Simplify right side
    4,936.45x = 19,347,707.41
  5. Step 5: Solve for x
    x = 19,347,707.41/4,936.45
  6. Step 6: Final answer
    x = 3,919.36

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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.