Home / 5,704.59-7,872.47-3,186.69

Finding the Fourth Proportional to 5,704.59, 7,872.47 and 3,186.69

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Solution

The fourth proportional to 5,704.59, 7,872.47 and 3,186.69 is: 4,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.59 : 7,872.47 = 3,186.69 : x
  2. Step 2: Convert to fraction form
    5,704.59/7,872.47 = 3,186.69/x
  3. Step 3: Cross multiply
    5,704.59x = 7,872.47 × 3,186.69
  4. Step 4: Simplify right side
    5,704.59x = 25,087,105.49
  5. Step 5: Solve for x
    x = 25,087,105.49/5,704.59
  6. Step 6: Final answer
    x = 4,397.71

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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.