Home / 5,776.85-8,660.06-2,078.21

Finding the Fourth Proportional to 5,776.85, 8,660.06 and 2,078.21

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Solution

The fourth proportional to 5,776.85, 8,660.06 and 2,078.21 is: 3,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.85 : 8,660.06 = 2,078.21 : x
  2. Step 2: Convert to fraction form
    5,776.85/8,660.06 = 2,078.21/x
  3. Step 3: Cross multiply
    5,776.85x = 8,660.06 × 2,078.21
  4. Step 4: Simplify right side
    5,776.85x = 17,997,369.60
  5. Step 5: Solve for x
    x = 17,997,369.60/5,776.85
  6. Step 6: Final answer
    x = 3,115.43

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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.