Home / 5,085.81-7,629.30-2,163.06

Finding the Fourth Proportional to 5,085.81, 7,629.30 and 2,163.06

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Solution

The fourth proportional to 5,085.81, 7,629.30 and 2,163.06 is: 3,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.81 : 7,629.30 = 2,163.06 : x
  2. Step 2: Convert to fraction form
    5,085.81/7,629.30 = 2,163.06/x
  3. Step 3: Cross multiply
    5,085.81x = 7,629.30 × 2,163.06
  4. Step 4: Simplify right side
    5,085.81x = 16,502,633.66
  5. Step 5: Solve for x
    x = 16,502,633.66/5,085.81
  6. Step 6: Final answer
    x = 3,244.84

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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.