Home / 5,176.46-7,143.04-2,938.43

Finding the Fourth Proportional to 5,176.46, 7,143.04 and 2,938.43

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Solution

The fourth proportional to 5,176.46, 7,143.04 and 2,938.43 is: 4,054.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.46 : 7,143.04 = 2,938.43 : x
  2. Step 2: Convert to fraction form
    5,176.46/7,143.04 = 2,938.43/x
  3. Step 3: Cross multiply
    5,176.46x = 7,143.04 × 2,938.43
  4. Step 4: Simplify right side
    5,176.46x = 20,989,323.03
  5. Step 5: Solve for x
    x = 20,989,323.03/5,176.46
  6. Step 6: Final answer
    x = 4,054.76

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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.