Home / 7,126.75-10,687.38-2,968.72

Finding the Fourth Proportional to 7,126.75, 10,687.38 and 2,968.72

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Solution

The fourth proportional to 7,126.75, 10,687.38 and 2,968.72 is: 4,451.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.75 : 10,687.38 = 2,968.72 : x
  2. Step 2: Convert to fraction form
    7,126.75/10,687.38 = 2,968.72/x
  3. Step 3: Cross multiply
    7,126.75x = 10,687.38 × 2,968.72
  4. Step 4: Simplify right side
    7,126.75x = 31,727,838.75
  5. Step 5: Solve for x
    x = 31,727,838.75/7,126.75
  6. Step 6: Final answer
    x = 4,451.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.