Home / 4,751.80-7,127.01-2,778.33

Finding the Fourth Proportional to 4,751.80, 7,127.01 and 2,778.33

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Solution

The fourth proportional to 4,751.80, 7,127.01 and 2,778.33 is: 4,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.80 : 7,127.01 = 2,778.33 : x
  2. Step 2: Convert to fraction form
    4,751.80/7,127.01 = 2,778.33/x
  3. Step 3: Cross multiply
    4,751.80x = 7,127.01 × 2,778.33
  4. Step 4: Simplify right side
    4,751.80x = 19,801,185.69
  5. Step 5: Solve for x
    x = 19,801,185.69/4,751.80
  6. Step 6: Final answer
    x = 4,167.09

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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.