Home / 7,941.87-10,958.31-5,145.75

Finding the Fourth Proportional to 7,941.87, 10,958.31 and 5,145.75

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Solution

The fourth proportional to 7,941.87, 10,958.31 and 5,145.75 is: 7,100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.87 : 10,958.31 = 5,145.75 : x
  2. Step 2: Convert to fraction form
    7,941.87/10,958.31 = 5,145.75/x
  3. Step 3: Cross multiply
    7,941.87x = 10,958.31 × 5,145.75
  4. Step 4: Simplify right side
    7,941.87x = 56,388,723.68
  5. Step 5: Solve for x
    x = 56,388,723.68/7,941.87
  6. Step 6: Final answer
    x = 7,100.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.