Home / 2,382.72-3,289.68-1,682.88

Finding the Fourth Proportional to 2,382.72, 3,289.68 and 1,682.88

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Solution

The fourth proportional to 2,382.72, 3,289.68 and 1,682.88 is: 2,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.72 : 3,289.68 = 1,682.88 : x
  2. Step 2: Convert to fraction form
    2,382.72/3,289.68 = 1,682.88/x
  3. Step 3: Cross multiply
    2,382.72x = 3,289.68 × 1,682.88
  4. Step 4: Simplify right side
    2,382.72x = 5,536,136.68
  5. Step 5: Solve for x
    x = 5,536,136.68/2,382.72
  6. Step 6: Final answer
    x = 2,323.45

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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.