Home / 4,120.14-5,685.89-2,351.71

Finding the Fourth Proportional to 4,120.14, 5,685.89 and 2,351.71

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Solution

The fourth proportional to 4,120.14, 5,685.89 and 2,351.71 is: 3,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.14 : 5,685.89 = 2,351.71 : x
  2. Step 2: Convert to fraction form
    4,120.14/5,685.89 = 2,351.71/x
  3. Step 3: Cross multiply
    4,120.14x = 5,685.89 × 2,351.71
  4. Step 4: Simplify right side
    4,120.14x = 13,371,564.37
  5. Step 5: Solve for x
    x = 13,371,564.37/4,120.14
  6. Step 6: Final answer
    x = 3,245.42

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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.