Home / 7,178.70-10,763.64-2,791.04

Finding the Fourth Proportional to 7,178.70, 10,763.64 and 2,791.04

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Solution

The fourth proportional to 7,178.70, 10,763.64 and 2,791.04 is: 4,184.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.70 : 10,763.64 = 2,791.04 : x
  2. Step 2: Convert to fraction form
    7,178.70/10,763.64 = 2,791.04/x
  3. Step 3: Cross multiply
    7,178.70x = 10,763.64 × 2,791.04
  4. Step 4: Simplify right side
    7,178.70x = 30,041,776.69
  5. Step 5: Solve for x
    x = 30,041,776.69/7,178.70
  6. Step 6: Final answer
    x = 4,184.85

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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.