Home / 3,788.63-5,228.91-2,195.00

Finding the Fourth Proportional to 3,788.63, 5,228.91 and 2,195.00

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Solution

The fourth proportional to 3,788.63, 5,228.91 and 2,195.00 is: 3,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.63 : 5,228.91 = 2,195.00 : x
  2. Step 2: Convert to fraction form
    3,788.63/5,228.91 = 2,195.00/x
  3. Step 3: Cross multiply
    3,788.63x = 5,228.91 × 2,195.00
  4. Step 4: Simplify right side
    3,788.63x = 11,477,431.31
  5. Step 5: Solve for x
    x = 11,477,431.31/3,788.63
  6. Step 6: Final answer
    x = 3,029.45

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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.