Home / 5,119.48-7,063.78-3,102.58

Finding the Fourth Proportional to 5,119.48, 7,063.78 and 3,102.58

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Solution

The fourth proportional to 5,119.48, 7,063.78 and 3,102.58 is: 4,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.48 : 7,063.78 = 3,102.58 : x
  2. Step 2: Convert to fraction form
    5,119.48/7,063.78 = 3,102.58/x
  3. Step 3: Cross multiply
    5,119.48x = 7,063.78 × 3,102.58
  4. Step 4: Simplify right side
    5,119.48x = 21,915,942.55
  5. Step 5: Solve for x
    x = 21,915,942.55/5,119.48
  6. Step 6: Final answer
    x = 4,280.89

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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.