Home / 3,186.81-4,774.82-1,951.64

Finding the Fourth Proportional to 3,186.81, 4,774.82 and 1,951.64

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Solution

The fourth proportional to 3,186.81, 4,774.82 and 1,951.64 is: 2,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.81 : 4,774.82 = 1,951.64 : x
  2. Step 2: Convert to fraction form
    3,186.81/4,774.82 = 1,951.64/x
  3. Step 3: Cross multiply
    3,186.81x = 4,774.82 × 1,951.64
  4. Step 4: Simplify right side
    3,186.81x = 9,318,719.95
  5. Step 5: Solve for x
    x = 9,318,719.95/3,186.81
  6. Step 6: Final answer
    x = 2,924.15

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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.