Home / 4,878.19-6,729.37-3,106.72

Finding the Fourth Proportional to 4,878.19, 6,729.37 and 3,106.72

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Solution

The fourth proportional to 4,878.19, 6,729.37 and 3,106.72 is: 4,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.19 : 6,729.37 = 3,106.72 : x
  2. Step 2: Convert to fraction form
    4,878.19/6,729.37 = 3,106.72/x
  3. Step 3: Cross multiply
    4,878.19x = 6,729.37 × 3,106.72
  4. Step 4: Simplify right side
    4,878.19x = 20,906,268.37
  5. Step 5: Solve for x
    x = 20,906,268.37/4,878.19
  6. Step 6: Final answer
    x = 4,285.66

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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.