Home / 3,459.78-5,198.99-1,817.51

Finding the Fourth Proportional to 3,459.78, 5,198.99 and 1,817.51

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Solution

The fourth proportional to 3,459.78, 5,198.99 and 1,817.51 is: 2,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.78 : 5,198.99 = 1,817.51 : x
  2. Step 2: Convert to fraction form
    3,459.78/5,198.99 = 1,817.51/x
  3. Step 3: Cross multiply
    3,459.78x = 5,198.99 × 1,817.51
  4. Step 4: Simplify right side
    3,459.78x = 9,449,181.23
  5. Step 5: Solve for x
    x = 9,449,181.23/3,459.78
  6. Step 6: Final answer
    x = 2,731.15

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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.