Home / 3,878.51-5,352.68-2,199.99

Finding the Fourth Proportional to 3,878.51, 5,352.68 and 2,199.99

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Solution

The fourth proportional to 3,878.51, 5,352.68 and 2,199.99 is: 3,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.51 : 5,352.68 = 2,199.99 : x
  2. Step 2: Convert to fraction form
    3,878.51/5,352.68 = 2,199.99/x
  3. Step 3: Cross multiply
    3,878.51x = 5,352.68 × 2,199.99
  4. Step 4: Simplify right side
    3,878.51x = 11,775,822.88
  5. Step 5: Solve for x
    x = 11,775,822.88/3,878.51
  6. Step 6: Final answer
    x = 3,036.17

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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.