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Finding the Fourth Proportional to 3,950.87, 5,927.22 and 1,318.19

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Solution

The fourth proportional to 3,950.87, 5,927.22 and 1,318.19 is: 1,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.87 : 5,927.22 = 1,318.19 : x
  2. Step 2: Convert to fraction form
    3,950.87/5,927.22 = 1,318.19/x
  3. Step 3: Cross multiply
    3,950.87x = 5,927.22 × 1,318.19
  4. Step 4: Simplify right side
    3,950.87x = 7,813,202.13
  5. Step 5: Solve for x
    x = 7,813,202.13/3,950.87
  6. Step 6: Final answer
    x = 1,977.59

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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.