Home / 3,186.14-4,397.63-2,125.58

Finding the Fourth Proportional to 3,186.14, 4,397.63 and 2,125.58

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Solution

The fourth proportional to 3,186.14, 4,397.63 and 2,125.58 is: 2,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.14 : 4,397.63 = 2,125.58 : x
  2. Step 2: Convert to fraction form
    3,186.14/4,397.63 = 2,125.58/x
  3. Step 3: Cross multiply
    3,186.14x = 4,397.63 × 2,125.58
  4. Step 4: Simplify right side
    3,186.14x = 9,347,481.76
  5. Step 5: Solve for x
    x = 9,347,481.76/3,186.14
  6. Step 6: Final answer
    x = 2,933.80

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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.