Home / 4,827.60-6,661.58-2,838.78

Finding the Fourth Proportional to 4,827.60, 6,661.58 and 2,838.78

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Solution

The fourth proportional to 4,827.60, 6,661.58 and 2,838.78 is: 3,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.60 : 6,661.58 = 2,838.78 : x
  2. Step 2: Convert to fraction form
    4,827.60/6,661.58 = 2,838.78/x
  3. Step 3: Cross multiply
    4,827.60x = 6,661.58 × 2,838.78
  4. Step 4: Simplify right side
    4,827.60x = 18,910,745.88
  5. Step 5: Solve for x
    x = 18,910,745.88/4,827.60
  6. Step 6: Final answer
    x = 3,917.21

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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.