Home / 2,788.39-3,847.83-1,529.23

Finding the Fourth Proportional to 2,788.39, 3,847.83 and 1,529.23

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Solution

The fourth proportional to 2,788.39, 3,847.83 and 1,529.23 is: 2,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.39 : 3,847.83 = 1,529.23 : x
  2. Step 2: Convert to fraction form
    2,788.39/3,847.83 = 1,529.23/x
  3. Step 3: Cross multiply
    2,788.39x = 3,847.83 × 1,529.23
  4. Step 4: Simplify right side
    2,788.39x = 5,884,217.07
  5. Step 5: Solve for x
    x = 5,884,217.07/2,788.39
  6. Step 6: Final answer
    x = 2,110.26

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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.