Home / 4,214.21-5,816.30-2,778.08

Finding the Fourth Proportional to 4,214.21, 5,816.30 and 2,778.08

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Solution

The fourth proportional to 4,214.21, 5,816.30 and 2,778.08 is: 3,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.21 : 5,816.30 = 2,778.08 : x
  2. Step 2: Convert to fraction form
    4,214.21/5,816.30 = 2,778.08/x
  3. Step 3: Cross multiply
    4,214.21x = 5,816.30 × 2,778.08
  4. Step 4: Simplify right side
    4,214.21x = 16,158,103.73
  5. Step 5: Solve for x
    x = 16,158,103.73/4,214.21
  6. Step 6: Final answer
    x = 3,834.20

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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.