Home / 7,178.72-10,763.92-3,281.04

Finding the Fourth Proportional to 7,178.72, 10,763.92 and 3,281.04

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Solution

The fourth proportional to 7,178.72, 10,763.92 and 3,281.04 is: 4,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.72 : 10,763.92 = 3,281.04 : x
  2. Step 2: Convert to fraction form
    7,178.72/10,763.92 = 3,281.04/x
  3. Step 3: Cross multiply
    7,178.72x = 10,763.92 × 3,281.04
  4. Step 4: Simplify right side
    7,178.72x = 35,316,852.08
  5. Step 5: Solve for x
    x = 35,316,852.08/7,178.72
  6. Step 6: Final answer
    x = 4,919.66

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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.