Home / 4,935.85-6,811.21-2,811.37

Finding the Fourth Proportional to 4,935.85, 6,811.21 and 2,811.37

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Solution

The fourth proportional to 4,935.85, 6,811.21 and 2,811.37 is: 3,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,935.85 : 6,811.21 = 2,811.37 : x
  2. Step 2: Convert to fraction form
    4,935.85/6,811.21 = 2,811.37/x
  3. Step 3: Cross multiply
    4,935.85x = 6,811.21 × 2,811.37
  4. Step 4: Simplify right side
    4,935.85x = 19,148,831.46
  5. Step 5: Solve for x
    x = 19,148,831.46/4,935.85
  6. Step 6: Final answer
    x = 3,879.54

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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.