Home / 3,489.48-4,815.05-2,072.79

Finding the Fourth Proportional to 3,489.48, 4,815.05 and 2,072.79

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Solution

The fourth proportional to 3,489.48, 4,815.05 and 2,072.79 is: 2,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.48 : 4,815.05 = 2,072.79 : x
  2. Step 2: Convert to fraction form
    3,489.48/4,815.05 = 2,072.79/x
  3. Step 3: Cross multiply
    3,489.48x = 4,815.05 × 2,072.79
  4. Step 4: Simplify right side
    3,489.48x = 9,980,577.13
  5. Step 5: Solve for x
    x = 9,980,577.13/3,489.48
  6. Step 6: Final answer
    x = 2,860.19

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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.