Home / 7,778.75-11,669.81-2,848.34

Finding the Fourth Proportional to 7,778.75, 11,669.81 and 2,848.34

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Solution

The fourth proportional to 7,778.75, 11,669.81 and 2,848.34 is: 4,273.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.75 : 11,669.81 = 2,848.34 : x
  2. Step 2: Convert to fraction form
    7,778.75/11,669.81 = 2,848.34/x
  3. Step 3: Cross multiply
    7,778.75x = 11,669.81 × 2,848.34
  4. Step 4: Simplify right side
    7,778.75x = 33,239,601.55
  5. Step 5: Solve for x
    x = 33,239,601.55/7,778.75
  6. Step 6: Final answer
    x = 4,273.13

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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.