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Finding the Fourth Proportional to 3,574.71, 5,354.77 and 1,839.69

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Solution

The fourth proportional to 3,574.71, 5,354.77 and 1,839.69 is: 2,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.71 : 5,354.77 = 1,839.69 : x
  2. Step 2: Convert to fraction form
    3,574.71/5,354.77 = 1,839.69/x
  3. Step 3: Cross multiply
    3,574.71x = 5,354.77 × 1,839.69
  4. Step 4: Simplify right side
    3,574.71x = 9,851,107.62
  5. Step 5: Solve for x
    x = 9,851,107.62/3,574.71
  6. Step 6: Final answer
    x = 2,755.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.