Home / 2,645.80-3,651.68-2,513.64

Finding the Fourth Proportional to 2,645.80, 3,651.68 and 2,513.64

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Solution

The fourth proportional to 2,645.80, 3,651.68 and 2,513.64 is: 3,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.80 : 3,651.68 = 2,513.64 : x
  2. Step 2: Convert to fraction form
    2,645.80/3,651.68 = 2,513.64/x
  3. Step 3: Cross multiply
    2,645.80x = 3,651.68 × 2,513.64
  4. Step 4: Simplify right side
    2,645.80x = 9,179,008.92
  5. Step 5: Solve for x
    x = 9,179,008.92/2,645.80
  6. Step 6: Final answer
    x = 3,469.28

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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.