Home / 2,715.05-4,074.19-983.81

Finding the Fourth Proportional to 2,715.05, 4,074.19 and 983.81

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Solution

The fourth proportional to 2,715.05, 4,074.19 and 983.81 is: 1,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.05 : 4,074.19 = 983.81 : x
  2. Step 2: Convert to fraction form
    2,715.05/4,074.19 = 983.81/x
  3. Step 3: Cross multiply
    2,715.05x = 4,074.19 × 983.81
  4. Step 4: Simplify right side
    2,715.05x = 4,008,236.59
  5. Step 5: Solve for x
    x = 4,008,236.59/2,715.05
  6. Step 6: Final answer
    x = 1,476.30

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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.