Home / 2,786.28-4,159.16-2,659.92

Finding the Fourth Proportional to 2,786.28, 4,159.16 and 2,659.92

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Solution

The fourth proportional to 2,786.28, 4,159.16 and 2,659.92 is: 3,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.28 : 4,159.16 = 2,659.92 : x
  2. Step 2: Convert to fraction form
    2,786.28/4,159.16 = 2,659.92/x
  3. Step 3: Cross multiply
    2,786.28x = 4,159.16 × 2,659.92
  4. Step 4: Simplify right side
    2,786.28x = 11,063,019.57
  5. Step 5: Solve for x
    x = 11,063,019.57/2,786.28
  6. Step 6: Final answer
    x = 3,970.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.