Home / 3,998.60-5,518.08-2,206.14

Finding the Fourth Proportional to 3,998.60, 5,518.08 and 2,206.14

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Solution

The fourth proportional to 3,998.60, 5,518.08 and 2,206.14 is: 3,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.60 : 5,518.08 = 2,206.14 : x
  2. Step 2: Convert to fraction form
    3,998.60/5,518.08 = 2,206.14/x
  3. Step 3: Cross multiply
    3,998.60x = 5,518.08 × 2,206.14
  4. Step 4: Simplify right side
    3,998.60x = 12,173,629.42
  5. Step 5: Solve for x
    x = 12,173,629.42/3,998.60
  6. Step 6: Final answer
    x = 3,044.48

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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.