Home / 4,874.60-6,727.20-2,778.68

Finding the Fourth Proportional to 4,874.60, 6,727.20 and 2,778.68

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Solution

The fourth proportional to 4,874.60, 6,727.20 and 2,778.68 is: 3,834.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.60 : 6,727.20 = 2,778.68 : x
  2. Step 2: Convert to fraction form
    4,874.60/6,727.20 = 2,778.68/x
  3. Step 3: Cross multiply
    4,874.60x = 6,727.20 × 2,778.68
  4. Step 4: Simplify right side
    4,874.60x = 18,692,736.10
  5. Step 5: Solve for x
    x = 18,692,736.10/4,874.60
  6. Step 6: Final answer
    x = 3,834.72

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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.