Home / 5,343.78-7,377.57-3,855.54

Finding the Fourth Proportional to 5,343.78, 7,377.57 and 3,855.54

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Solution

The fourth proportional to 5,343.78, 7,377.57 and 3,855.54 is: 5,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.78 : 7,377.57 = 3,855.54 : x
  2. Step 2: Convert to fraction form
    5,343.78/7,377.57 = 3,855.54/x
  3. Step 3: Cross multiply
    5,343.78x = 7,377.57 × 3,855.54
  4. Step 4: Simplify right side
    5,343.78x = 28,444,516.24
  5. Step 5: Solve for x
    x = 28,444,516.24/5,343.78
  6. Step 6: Final answer
    x = 5,322.92

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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.