Home / 5,176.09-7,143.20-2,938.06

Finding the Fourth Proportional to 5,176.09, 7,143.20 and 2,938.06

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Solution

The fourth proportional to 5,176.09, 7,143.20 and 2,938.06 is: 4,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.09 : 7,143.20 = 2,938.06 : x
  2. Step 2: Convert to fraction form
    5,176.09/7,143.20 = 2,938.06/x
  3. Step 3: Cross multiply
    5,176.09x = 7,143.20 × 2,938.06
  4. Step 4: Simplify right side
    5,176.09x = 20,987,150.19
  5. Step 5: Solve for x
    x = 20,987,150.19/5,176.09
  6. Step 6: Final answer
    x = 4,054.63

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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.