Home / 3,186.79-4,780.87-1,336.84

Finding the Fourth Proportional to 3,186.79, 4,780.87 and 1,336.84

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Solution

The fourth proportional to 3,186.79, 4,780.87 and 1,336.84 is: 2,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.79 : 4,780.87 = 1,336.84 : x
  2. Step 2: Convert to fraction form
    3,186.79/4,780.87 = 1,336.84/x
  3. Step 3: Cross multiply
    3,186.79x = 4,780.87 × 1,336.84
  4. Step 4: Simplify right side
    3,186.79x = 6,391,242.96
  5. Step 5: Solve for x
    x = 6,391,242.96/3,186.79
  6. Step 6: Final answer
    x = 2,005.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.