Home / 3,698.83-5,103.20-2,636.79

Finding the Fourth Proportional to 3,698.83, 5,103.20 and 2,636.79

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Solution

The fourth proportional to 3,698.83, 5,103.20 and 2,636.79 is: 3,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.83 : 5,103.20 = 2,636.79 : x
  2. Step 2: Convert to fraction form
    3,698.83/5,103.20 = 2,636.79/x
  3. Step 3: Cross multiply
    3,698.83x = 5,103.20 × 2,636.79
  4. Step 4: Simplify right side
    3,698.83x = 13,456,054.18
  5. Step 5: Solve for x
    x = 13,456,054.18/3,698.83
  6. Step 6: Final answer
    x = 3,637.92

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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.