Home / 3,186.45-4,776.95-1,210.97

Finding the Fourth Proportional to 3,186.45, 4,776.95 and 1,210.97

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Solution

The fourth proportional to 3,186.45, 4,776.95 and 1,210.97 is: 1,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.45 : 4,776.95 = 1,210.97 : x
  2. Step 2: Convert to fraction form
    3,186.45/4,776.95 = 1,210.97/x
  3. Step 3: Cross multiply
    3,186.45x = 4,776.95 × 1,210.97
  4. Step 4: Simplify right side
    3,186.45x = 5,784,758.11
  5. Step 5: Solve for x
    x = 5,784,758.11/3,186.45
  6. Step 6: Final answer
    x = 1,815.42

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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.