Home / 5,218.75-7,822.64-2,443.08

Finding the Fourth Proportional to 5,218.75, 7,822.64 and 2,443.08

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Solution

The fourth proportional to 5,218.75, 7,822.64 and 2,443.08 is: 3,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.75 : 7,822.64 = 2,443.08 : x
  2. Step 2: Convert to fraction form
    5,218.75/7,822.64 = 2,443.08/x
  3. Step 3: Cross multiply
    5,218.75x = 7,822.64 × 2,443.08
  4. Step 4: Simplify right side
    5,218.75x = 19,111,326.77
  5. Step 5: Solve for x
    x = 19,111,326.77/5,218.75
  6. Step 6: Final answer
    x = 3,662.05

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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.