Home / 3,418.38-4,716.28-2,091.42

Finding the Fourth Proportional to 3,418.38, 4,716.28 and 2,091.42

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Solution

The fourth proportional to 3,418.38, 4,716.28 and 2,091.42 is: 2,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.38 : 4,716.28 = 2,091.42 : x
  2. Step 2: Convert to fraction form
    3,418.38/4,716.28 = 2,091.42/x
  3. Step 3: Cross multiply
    3,418.38x = 4,716.28 × 2,091.42
  4. Step 4: Simplify right side
    3,418.38x = 9,863,693.51
  5. Step 5: Solve for x
    x = 9,863,693.51/3,418.38
  6. Step 6: Final answer
    x = 2,885.49

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1.5x scale

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.