Home / 6,418.76-8,857.50-3,766.64

Finding the Fourth Proportional to 6,418.76, 8,857.50 and 3,766.64

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Solution

The fourth proportional to 6,418.76, 8,857.50 and 3,766.64 is: 5,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.76 : 8,857.50 = 3,766.64 : x
  2. Step 2: Convert to fraction form
    6,418.76/8,857.50 = 3,766.64/x
  3. Step 3: Cross multiply
    6,418.76x = 8,857.50 × 3,766.64
  4. Step 4: Simplify right side
    6,418.76x = 33,363,013.80
  5. Step 5: Solve for x
    x = 33,363,013.80/6,418.76
  6. Step 6: Final answer
    x = 5,197.74

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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.