Home / 5,778.85-8,664.80-2,811.44

Finding the Fourth Proportional to 5,778.85, 8,664.80 and 2,811.44

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Solution

The fourth proportional to 5,778.85, 8,664.80 and 2,811.44 is: 4,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.85 : 8,664.80 = 2,811.44 : x
  2. Step 2: Convert to fraction form
    5,778.85/8,664.80 = 2,811.44/x
  3. Step 3: Cross multiply
    5,778.85x = 8,664.80 × 2,811.44
  4. Step 4: Simplify right side
    5,778.85x = 24,360,507.93
  5. Step 5: Solve for x
    x = 24,360,507.93/5,778.85
  6. Step 6: Final answer
    x = 4,215.46

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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.