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Finding the Fourth Proportional to 3,505.80, 4,838.22 and 1,933.90

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Solution

The fourth proportional to 3,505.80, 4,838.22 and 1,933.90 is: 2,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.80 : 4,838.22 = 1,933.90 : x
  2. Step 2: Convert to fraction form
    3,505.80/4,838.22 = 1,933.90/x
  3. Step 3: Cross multiply
    3,505.80x = 4,838.22 × 1,933.90
  4. Step 4: Simplify right side
    3,505.80x = 9,356,633.66
  5. Step 5: Solve for x
    x = 9,356,633.66/3,505.80
  6. Step 6: Final answer
    x = 2,668.90

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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.