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Finding the Fourth Proportional to 6,295.80, 9,443.70 and 3,790.20

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Solution

The fourth proportional to 6,295.80, 9,443.70 and 3,790.20 is: 5,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.80 : 9,443.70 = 3,790.20 : x
  2. Step 2: Convert to fraction form
    6,295.80/9,443.70 = 3,790.20/x
  3. Step 3: Cross multiply
    6,295.80x = 9,443.70 × 3,790.20
  4. Step 4: Simplify right side
    6,295.80x = 35,793,511.74
  5. Step 5: Solve for x
    x = 35,793,511.74/6,295.80
  6. Step 6: Final answer
    x = 5,685.30

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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.