Home / 5,536.72-7,640.94-3,178.81

Finding the Fourth Proportional to 5,536.72, 7,640.94 and 3,178.81

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Solution

The fourth proportional to 5,536.72, 7,640.94 and 3,178.81 is: 4,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,536.72 : 7,640.94 = 3,178.81 : x
  2. Step 2: Convert to fraction form
    5,536.72/7,640.94 = 3,178.81/x
  3. Step 3: Cross multiply
    5,536.72x = 7,640.94 × 3,178.81
  4. Step 4: Simplify right side
    5,536.72x = 24,289,096.48
  5. Step 5: Solve for x
    x = 24,289,096.48/5,536.72
  6. Step 6: Final answer
    x = 4,386.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.