Home / 3,185.64-4,776.14-2,143.06

Finding the Fourth Proportional to 3,185.64, 4,776.14 and 2,143.06

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Solution

The fourth proportional to 3,185.64, 4,776.14 and 2,143.06 is: 3,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.64 : 4,776.14 = 2,143.06 : x
  2. Step 2: Convert to fraction form
    3,185.64/4,776.14 = 2,143.06/x
  3. Step 3: Cross multiply
    3,185.64x = 4,776.14 × 2,143.06
  4. Step 4: Simplify right side
    3,185.64x = 10,235,554.59
  5. Step 5: Solve for x
    x = 10,235,554.59/3,185.64
  6. Step 6: Final answer
    x = 3,213.03

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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.