Home / 7,178.13-10,769.94-2,798.64

Finding the Fourth Proportional to 7,178.13, 10,769.94 and 2,798.64

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Solution

The fourth proportional to 7,178.13, 10,769.94 and 2,798.64 is: 4,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.13 : 10,769.94 = 2,798.64 : x
  2. Step 2: Convert to fraction form
    7,178.13/10,769.94 = 2,798.64/x
  3. Step 3: Cross multiply
    7,178.13x = 10,769.94 × 2,798.64
  4. Step 4: Simplify right side
    7,178.13x = 30,141,184.88
  5. Step 5: Solve for x
    x = 30,141,184.88/7,178.13
  6. Step 6: Final answer
    x = 4,199.03

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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.