Home / 7,286.87-10,055.85-4,143.06

Finding the Fourth Proportional to 7,286.87, 10,055.85 and 4,143.06

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Solution

The fourth proportional to 7,286.87, 10,055.85 and 4,143.06 is: 5,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.87 : 10,055.85 = 4,143.06 : x
  2. Step 2: Convert to fraction form
    7,286.87/10,055.85 = 4,143.06/x
  3. Step 3: Cross multiply
    7,286.87x = 10,055.85 × 4,143.06
  4. Step 4: Simplify right side
    7,286.87x = 41,661,989.90
  5. Step 5: Solve for x
    x = 41,661,989.90/7,286.87
  6. Step 6: Final answer
    x = 5,717.41

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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.