Home / 2,975.28-4,105.62-1,648.64

Finding the Fourth Proportional to 2,975.28, 4,105.62 and 1,648.64

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Solution

The fourth proportional to 2,975.28, 4,105.62 and 1,648.64 is: 2,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.28 : 4,105.62 = 1,648.64 : x
  2. Step 2: Convert to fraction form
    2,975.28/4,105.62 = 1,648.64/x
  3. Step 3: Cross multiply
    2,975.28x = 4,105.62 × 1,648.64
  4. Step 4: Simplify right side
    2,975.28x = 6,768,668.83
  5. Step 5: Solve for x
    x = 6,768,668.83/2,975.28
  6. Step 6: Final answer
    x = 2,274.97

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1.5x scale

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.