Home / 6,269.28-8,650.40-3,616.80

Finding the Fourth Proportional to 6,269.28, 8,650.40 and 3,616.80

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Solution

The fourth proportional to 6,269.28, 8,650.40 and 3,616.80 is: 4,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,269.28 : 8,650.40 = 3,616.80 : x
  2. Step 2: Convert to fraction form
    6,269.28/8,650.40 = 3,616.80/x
  3. Step 3: Cross multiply
    6,269.28x = 8,650.40 × 3,616.80
  4. Step 4: Simplify right side
    6,269.28x = 31,286,766.72
  5. Step 5: Solve for x
    x = 31,286,766.72/6,269.28
  6. Step 6: Final answer
    x = 4,990.49

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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.