Home / 3,529.62-4,859.73-3,108.42

Finding the Fourth Proportional to 3,529.62, 4,859.73 and 3,108.42

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Solution

The fourth proportional to 3,529.62, 4,859.73 and 3,108.42 is: 4,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.62 : 4,859.73 = 3,108.42 : x
  2. Step 2: Convert to fraction form
    3,529.62/4,859.73 = 3,108.42/x
  3. Step 3: Cross multiply
    3,529.62x = 4,859.73 × 3,108.42
  4. Step 4: Simplify right side
    3,529.62x = 15,106,081.93
  5. Step 5: Solve for x
    x = 15,106,081.93/3,529.62
  6. Step 6: Final answer
    x = 4,279.80

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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.