Home / 3,458.70-5,190.39-2,286.18

Finding the Fourth Proportional to 3,458.70, 5,190.39 and 2,286.18

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Solution

The fourth proportional to 3,458.70, 5,190.39 and 2,286.18 is: 3,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.70 : 5,190.39 = 2,286.18 : x
  2. Step 2: Convert to fraction form
    3,458.70/5,190.39 = 2,286.18/x
  3. Step 3: Cross multiply
    3,458.70x = 5,190.39 × 2,286.18
  4. Step 4: Simplify right side
    3,458.70x = 11,866,165.81
  5. Step 5: Solve for x
    x = 11,866,165.81/3,458.70
  6. Step 6: Final answer
    x = 3,430.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.