Home / 6,433.08-8,876.76-3,780.72

Finding the Fourth Proportional to 6,433.08, 8,876.76 and 3,780.72

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Solution

The fourth proportional to 6,433.08, 8,876.76 and 3,780.72 is: 5,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.08 : 8,876.76 = 3,780.72 : x
  2. Step 2: Convert to fraction form
    6,433.08/8,876.76 = 3,780.72/x
  3. Step 3: Cross multiply
    6,433.08x = 8,876.76 × 3,780.72
  4. Step 4: Simplify right side
    6,433.08x = 33,560,544.07
  5. Step 5: Solve for x
    x = 33,560,544.07/6,433.08
  6. Step 6: Final answer
    x = 5,216.87

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Half scale
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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.