Home / 2,650.19-3,975.92-1,871.71

Finding the Fourth Proportional to 2,650.19, 3,975.92 and 1,871.71

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Solution

The fourth proportional to 2,650.19, 3,975.92 and 1,871.71 is: 2,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.19 : 3,975.92 = 1,871.71 : x
  2. Step 2: Convert to fraction form
    2,650.19/3,975.92 = 1,871.71/x
  3. Step 3: Cross multiply
    2,650.19x = 3,975.92 × 1,871.71
  4. Step 4: Simplify right side
    2,650.19x = 7,441,767.47
  5. Step 5: Solve for x
    x = 7,441,767.47/2,650.19
  6. Step 6: Final answer
    x = 2,808.02

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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.