Home / 3,578.04-4,938.30-2,086.38

Finding the Fourth Proportional to 3,578.04, 4,938.30 and 2,086.38

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Solution

The fourth proportional to 3,578.04, 4,938.30 and 2,086.38 is: 2,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.04 : 4,938.30 = 2,086.38 : x
  2. Step 2: Convert to fraction form
    3,578.04/4,938.30 = 2,086.38/x
  3. Step 3: Cross multiply
    3,578.04x = 4,938.30 × 2,086.38
  4. Step 4: Simplify right side
    3,578.04x = 10,303,170.35
  5. Step 5: Solve for x
    x = 10,303,170.35/3,578.04
  6. Step 6: Final answer
    x = 2,879.56

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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.