Home / 2,823.64-3,896.61-1,581.64

Finding the Fourth Proportional to 2,823.64, 3,896.61 and 1,581.64

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Solution

The fourth proportional to 2,823.64, 3,896.61 and 1,581.64 is: 2,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.64 : 3,896.61 = 1,581.64 : x
  2. Step 2: Convert to fraction form
    2,823.64/3,896.61 = 1,581.64/x
  3. Step 3: Cross multiply
    2,823.64x = 3,896.61 × 1,581.64
  4. Step 4: Simplify right side
    2,823.64x = 6,163,034.24
  5. Step 5: Solve for x
    x = 6,163,034.24/2,823.64
  6. Step 6: Final answer
    x = 2,182.66

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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.