Home / 4,088.94-5,640.78-2,763.09

Finding the Fourth Proportional to 4,088.94, 5,640.78 and 2,763.09

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Solution

The fourth proportional to 4,088.94, 5,640.78 and 2,763.09 is: 3,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.94 : 5,640.78 = 2,763.09 : x
  2. Step 2: Convert to fraction form
    4,088.94/5,640.78 = 2,763.09/x
  3. Step 3: Cross multiply
    4,088.94x = 5,640.78 × 2,763.09
  4. Step 4: Simplify right side
    4,088.94x = 15,585,982.81
  5. Step 5: Solve for x
    x = 15,585,982.81/4,088.94
  6. Step 6: Final answer
    x = 3,811.74

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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.