Home / 3,186.77-4,397.73-1,789.52

Finding the Fourth Proportional to 3,186.77, 4,397.73 and 1,789.52

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Solution

The fourth proportional to 3,186.77, 4,397.73 and 1,789.52 is: 2,469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.77 : 4,397.73 = 1,789.52 : x
  2. Step 2: Convert to fraction form
    3,186.77/4,397.73 = 1,789.52/x
  3. Step 3: Cross multiply
    3,186.77x = 4,397.73 × 1,789.52
  4. Step 4: Simplify right side
    3,186.77x = 7,869,825.79
  5. Step 5: Solve for x
    x = 7,869,825.79/3,186.77
  6. Step 6: Final answer
    x = 2,469.53

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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.