Home / 5,438.03-8,155.77-2,661.92

Finding the Fourth Proportional to 5,438.03, 8,155.77 and 2,661.92

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Solution

The fourth proportional to 5,438.03, 8,155.77 and 2,661.92 is: 3,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.03 : 8,155.77 = 2,661.92 : x
  2. Step 2: Convert to fraction form
    5,438.03/8,155.77 = 2,661.92/x
  3. Step 3: Cross multiply
    5,438.03x = 8,155.77 × 2,661.92
  4. Step 4: Simplify right side
    5,438.03x = 21,709,966.50
  5. Step 5: Solve for x
    x = 21,709,966.50/5,438.03
  6. Step 6: Final answer
    x = 3,992.25

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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.