Home / 3,418.09-4,707.03-2,969.75

Finding the Fourth Proportional to 3,418.09, 4,707.03 and 2,969.75

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Solution

The fourth proportional to 3,418.09, 4,707.03 and 2,969.75 is: 4,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.09 : 4,707.03 = 2,969.75 : x
  2. Step 2: Convert to fraction form
    3,418.09/4,707.03 = 2,969.75/x
  3. Step 3: Cross multiply
    3,418.09x = 4,707.03 × 2,969.75
  4. Step 4: Simplify right side
    3,418.09x = 13,978,714.11
  5. Step 5: Solve for x
    x = 13,978,714.11/3,418.09
  6. Step 6: Final answer
    x = 4,089.63

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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.