Home / 5,729.16-7,905.75-3,177

Finding the Fourth Proportional to 5,729.16, 7,905.75 and 3,177

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Solution

The fourth proportional to 5,729.16, 7,905.75 and 3,177 is: 4,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.16 : 7,905.75 = 3,177 : x
  2. Step 2: Convert to fraction form
    5,729.16/7,905.75 = 3,177/x
  3. Step 3: Cross multiply
    5,729.16x = 7,905.75 × 3,177
  4. Step 4: Simplify right side
    5,729.16x = 25,116,567.75
  5. Step 5: Solve for x
    x = 25,116,567.75/5,729.16
  6. Step 6: Final answer
    x = 4,383.99

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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.