Home / 5,128.00-7,076.63-2,770.14

Finding the Fourth Proportional to 5,128.00, 7,076.63 and 2,770.14

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Solution

The fourth proportional to 5,128.00, 7,076.63 and 2,770.14 is: 3,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.00 : 7,076.63 = 2,770.14 : x
  2. Step 2: Convert to fraction form
    5,128.00/7,076.63 = 2,770.14/x
  3. Step 3: Cross multiply
    5,128.00x = 7,076.63 × 2,770.14
  4. Step 4: Simplify right side
    5,128.00x = 19,603,245.38
  5. Step 5: Solve for x
    x = 19,603,245.38/5,128.00
  6. Step 6: Final answer
    x = 3,822.79

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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.