Home / 6,426.20-9,620.10-3,827.80

Finding the Fourth Proportional to 6,426.20, 9,620.10 and 3,827.80

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Solution

The fourth proportional to 6,426.20, 9,620.10 and 3,827.80 is: 5,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.20 : 9,620.10 = 3,827.80 : x
  2. Step 2: Convert to fraction form
    6,426.20/9,620.10 = 3,827.80/x
  3. Step 3: Cross multiply
    6,426.20x = 9,620.10 × 3,827.80
  4. Step 4: Simplify right side
    6,426.20x = 36,823,818.78
  5. Step 5: Solve for x
    x = 36,823,818.78/6,426.20
  6. Step 6: Final answer
    x = 5,730.26

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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.