Home / 3,007.52-4,128.28-2,668.56

Finding the Fourth Proportional to 3,007.52, 4,128.28 and 2,668.56

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Solution

The fourth proportional to 3,007.52, 4,128.28 and 2,668.56 is: 3,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.52 : 4,128.28 = 2,668.56 : x
  2. Step 2: Convert to fraction form
    3,007.52/4,128.28 = 2,668.56/x
  3. Step 3: Cross multiply
    3,007.52x = 4,128.28 × 2,668.56
  4. Step 4: Simplify right side
    3,007.52x = 11,016,562.88
  5. Step 5: Solve for x
    x = 11,016,562.88/3,007.52
  6. Step 6: Final answer
    x = 3,663.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.