Home / 2,712.47-4,069.94-2,668.79

Finding the Fourth Proportional to 2,712.47, 4,069.94 and 2,668.79

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Solution

The fourth proportional to 2,712.47, 4,069.94 and 2,668.79 is: 4,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.47 : 4,069.94 = 2,668.79 : x
  2. Step 2: Convert to fraction form
    2,712.47/4,069.94 = 2,668.79/x
  3. Step 3: Cross multiply
    2,712.47x = 4,069.94 × 2,668.79
  4. Step 4: Simplify right side
    2,712.47x = 10,861,815.17
  5. Step 5: Solve for x
    x = 10,861,815.17/2,712.47
  6. Step 6: Final answer
    x = 4,004.40

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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.