Home / 4,518.21-6,777.66-1,398.21

Finding the Fourth Proportional to 4,518.21, 6,777.66 and 1,398.21

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Solution

The fourth proportional to 4,518.21, 6,777.66 and 1,398.21 is: 2,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.21 : 6,777.66 = 1,398.21 : x
  2. Step 2: Convert to fraction form
    4,518.21/6,777.66 = 1,398.21/x
  3. Step 3: Cross multiply
    4,518.21x = 6,777.66 × 1,398.21
  4. Step 4: Simplify right side
    4,518.21x = 9,476,591.99
  5. Step 5: Solve for x
    x = 9,476,591.99/4,518.21
  6. Step 6: Final answer
    x = 2,097.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.