Home / 3,515.27-5,274.36-1,871.37

Finding the Fourth Proportional to 3,515.27, 5,274.36 and 1,871.37

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Solution

The fourth proportional to 3,515.27, 5,274.36 and 1,871.37 is: 2,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.27 : 5,274.36 = 1,871.37 : x
  2. Step 2: Convert to fraction form
    3,515.27/5,274.36 = 1,871.37/x
  3. Step 3: Cross multiply
    3,515.27x = 5,274.36 × 1,871.37
  4. Step 4: Simplify right side
    3,515.27x = 9,870,279.07
  5. Step 5: Solve for x
    x = 9,870,279.07/3,515.27
  6. Step 6: Final answer
    x = 2,807.83

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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.