Home / 3,627.20-5,438.23-1,871.45

Finding the Fourth Proportional to 3,627.20, 5,438.23 and 1,871.45

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Solution

The fourth proportional to 3,627.20, 5,438.23 and 1,871.45 is: 2,805.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.20 : 5,438.23 = 1,871.45 : x
  2. Step 2: Convert to fraction form
    3,627.20/5,438.23 = 1,871.45/x
  3. Step 3: Cross multiply
    3,627.20x = 5,438.23 × 1,871.45
  4. Step 4: Simplify right side
    3,627.20x = 10,177,384.45
  5. Step 5: Solve for x
    x = 10,177,384.45/3,627.20
  6. Step 6: Final answer
    x = 2,805.86

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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.