Home / 5,177.26-7,143.40-2,938.63

Finding the Fourth Proportional to 5,177.26, 7,143.40 and 2,938.63

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Solution

The fourth proportional to 5,177.26, 7,143.40 and 2,938.63 is: 4,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.26 : 7,143.40 = 2,938.63 : x
  2. Step 2: Convert to fraction form
    5,177.26/7,143.40 = 2,938.63/x
  3. Step 3: Cross multiply
    5,177.26x = 7,143.40 × 2,938.63
  4. Step 4: Simplify right side
    5,177.26x = 20,991,759.13
  5. Step 5: Solve for x
    x = 20,991,759.13/5,177.26
  6. Step 6: Final answer
    x = 4,054.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.