Home / 7,286.28-10,055.10-4,142.64

Finding the Fourth Proportional to 7,286.28, 10,055.10 and 4,142.64

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Solution

The fourth proportional to 7,286.28, 10,055.10 and 4,142.64 is: 5,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.28 : 10,055.10 = 4,142.64 : x
  2. Step 2: Convert to fraction form
    7,286.28/10,055.10 = 4,142.64/x
  3. Step 3: Cross multiply
    7,286.28x = 10,055.10 × 4,142.64
  4. Step 4: Simplify right side
    7,286.28x = 41,654,659.46
  5. Step 5: Solve for x
    x = 41,654,659.46/7,286.28
  6. Step 6: Final answer
    x = 5,716.86

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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.