Home / 5,451.25-7,523.13-3,355.78

Finding the Fourth Proportional to 5,451.25, 7,523.13 and 3,355.78

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Solution

The fourth proportional to 5,451.25, 7,523.13 and 3,355.78 is: 4,631.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.25 : 7,523.13 = 3,355.78 : x
  2. Step 2: Convert to fraction form
    5,451.25/7,523.13 = 3,355.78/x
  3. Step 3: Cross multiply
    5,451.25x = 7,523.13 × 3,355.78
  4. Step 4: Simplify right side
    5,451.25x = 25,245,969.19
  5. Step 5: Solve for x
    x = 25,245,969.19/5,451.25
  6. Step 6: Final answer
    x = 4,631.23

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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.