Home / 2,823.47-3,896.39-1,581.47

Finding the Fourth Proportional to 2,823.47, 3,896.39 and 1,581.47

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Solution

The fourth proportional to 2,823.47, 3,896.39 and 1,581.47 is: 2,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.47 : 3,896.39 = 1,581.47 : x
  2. Step 2: Convert to fraction form
    2,823.47/3,896.39 = 1,581.47/x
  3. Step 3: Cross multiply
    2,823.47x = 3,896.39 × 1,581.47
  4. Step 4: Simplify right side
    2,823.47x = 6,162,022.98
  5. Step 5: Solve for x
    x = 6,162,022.98/2,823.47
  6. Step 6: Final answer
    x = 2,182.43

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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.