Home / 5,147.84-7,105.39-3,554.75

Finding the Fourth Proportional to 5,147.84, 7,105.39 and 3,554.75

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Solution

The fourth proportional to 5,147.84, 7,105.39 and 3,554.75 is: 4,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.84 : 7,105.39 = 3,554.75 : x
  2. Step 2: Convert to fraction form
    5,147.84/7,105.39 = 3,554.75/x
  3. Step 3: Cross multiply
    5,147.84x = 7,105.39 × 3,554.75
  4. Step 4: Simplify right side
    5,147.84x = 25,257,893.98
  5. Step 5: Solve for x
    x = 25,257,893.98/5,147.84
  6. Step 6: Final answer
    x = 4,906.50

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Half scale
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Double scale
Find fourth proportional to 5,148.84, 7,106.77 and 3,555.75
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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.