Home / 5,085.81-7,629.87-1,965.83

Finding the Fourth Proportional to 5,085.81, 7,629.87 and 1,965.83

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Solution

The fourth proportional to 5,085.81, 7,629.87 and 1,965.83 is: 2,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.81 : 7,629.87 = 1,965.83 : x
  2. Step 2: Convert to fraction form
    5,085.81/7,629.87 = 1,965.83/x
  3. Step 3: Cross multiply
    5,085.81x = 7,629.87 × 1,965.83
  4. Step 4: Simplify right side
    5,085.81x = 14,998,989.19
  5. Step 5: Solve for x
    x = 14,998,989.19/5,085.81
  6. Step 6: Final answer
    x = 2,949.18

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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.