Home / 7,207.20-10,804.42-2,827.80

Finding the Fourth Proportional to 7,207.20, 10,804.42 and 2,827.80

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Solution

The fourth proportional to 7,207.20, 10,804.42 and 2,827.80 is: 4,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.20 : 10,804.42 = 2,827.80 : x
  2. Step 2: Convert to fraction form
    7,207.20/10,804.42 = 2,827.80/x
  3. Step 3: Cross multiply
    7,207.20x = 10,804.42 × 2,827.80
  4. Step 4: Simplify right side
    7,207.20x = 30,552,738.88
  5. Step 5: Solve for x
    x = 30,552,738.88/7,207.20
  6. Step 6: Final answer
    x = 4,239.20

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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.