Home / 4,811.86-6,638.08-3,132.66

Finding the Fourth Proportional to 4,811.86, 6,638.08 and 3,132.66

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Solution

The fourth proportional to 4,811.86, 6,638.08 and 3,132.66 is: 4,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.86 : 6,638.08 = 3,132.66 : x
  2. Step 2: Convert to fraction form
    4,811.86/6,638.08 = 3,132.66/x
  3. Step 3: Cross multiply
    4,811.86x = 6,638.08 × 3,132.66
  4. Step 4: Simplify right side
    4,811.86x = 20,794,847.69
  5. Step 5: Solve for x
    x = 20,794,847.69/4,811.86
  6. Step 6: Final answer
    x = 4,321.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.