Home / 2,863.68-3,952.59-1,685.55

Finding the Fourth Proportional to 2,863.68, 3,952.59 and 1,685.55

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Solution

The fourth proportional to 2,863.68, 3,952.59 and 1,685.55 is: 2,326.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.68 : 3,952.59 = 1,685.55 : x
  2. Step 2: Convert to fraction form
    2,863.68/3,952.59 = 1,685.55/x
  3. Step 3: Cross multiply
    2,863.68x = 3,952.59 × 1,685.55
  4. Step 4: Simplify right side
    2,863.68x = 6,662,288.07
  5. Step 5: Solve for x
    x = 6,662,288.07/2,863.68
  6. Step 6: Final answer
    x = 2,326.48

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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.