Home / 3,394.38-4,684.52-1,997.40

Finding the Fourth Proportional to 3,394.38, 4,684.52 and 1,997.40

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Solution

The fourth proportional to 3,394.38, 4,684.52 and 1,997.40 is: 2,756.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.38 : 4,684.52 = 1,997.40 : x
  2. Step 2: Convert to fraction form
    3,394.38/4,684.52 = 1,997.40/x
  3. Step 3: Cross multiply
    3,394.38x = 4,684.52 × 1,997.40
  4. Step 4: Simplify right side
    3,394.38x = 9,356,860.25
  5. Step 5: Solve for x
    x = 9,356,860.25/3,394.38
  6. Step 6: Final answer
    x = 2,756.57

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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.