Home / 4,486.31-6,189.51-2,809.81

Finding the Fourth Proportional to 4,486.31, 6,189.51 and 2,809.81

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Solution

The fourth proportional to 4,486.31, 6,189.51 and 2,809.81 is: 3,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.31 : 6,189.51 = 2,809.81 : x
  2. Step 2: Convert to fraction form
    4,486.31/6,189.51 = 2,809.81/x
  3. Step 3: Cross multiply
    4,486.31x = 6,189.51 × 2,809.81
  4. Step 4: Simplify right side
    4,486.31x = 17,391,347.09
  5. Step 5: Solve for x
    x = 17,391,347.09/4,486.31
  6. Step 6: Final answer
    x = 3,876.54

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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.