Home / 7,178.18-10,763.03-2,790.47

Finding the Fourth Proportional to 7,178.18, 10,763.03 and 2,790.47

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Solution

The fourth proportional to 7,178.18, 10,763.03 and 2,790.47 is: 4,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.18 : 10,763.03 = 2,790.47 : x
  2. Step 2: Convert to fraction form
    7,178.18/10,763.03 = 2,790.47/x
  3. Step 3: Cross multiply
    7,178.18x = 10,763.03 × 2,790.47
  4. Step 4: Simplify right side
    7,178.18x = 30,033,844.56
  5. Step 5: Solve for x
    x = 30,033,844.56/7,178.18
  6. Step 6: Final answer
    x = 4,184.05

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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.