Home / 5,359.27-7,396.53-3,121.85

Finding the Fourth Proportional to 5,359.27, 7,396.53 and 3,121.85

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Solution

The fourth proportional to 5,359.27, 7,396.53 and 3,121.85 is: 4,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.27 : 7,396.53 = 3,121.85 : x
  2. Step 2: Convert to fraction form
    5,359.27/7,396.53 = 3,121.85/x
  3. Step 3: Cross multiply
    5,359.27x = 7,396.53 × 3,121.85
  4. Step 4: Simplify right side
    5,359.27x = 23,090,860.72
  5. Step 5: Solve for x
    x = 23,090,860.72/5,359.27
  6. Step 6: Final answer
    x = 4,308.58

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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.