Home / 3,727.04-5,135.85-2,661.80

Finding the Fourth Proportional to 3,727.04, 5,135.85 and 2,661.80

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Solution

The fourth proportional to 3,727.04, 5,135.85 and 2,661.80 is: 3,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.04 : 5,135.85 = 2,661.80 : x
  2. Step 2: Convert to fraction form
    3,727.04/5,135.85 = 2,661.80/x
  3. Step 3: Cross multiply
    3,727.04x = 5,135.85 × 2,661.80
  4. Step 4: Simplify right side
    3,727.04x = 13,670,579.85
  5. Step 5: Solve for x
    x = 13,670,579.85/3,727.04
  6. Step 6: Final answer
    x = 3,667.95

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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.