Home / 5,375.54-7,420.59-3,136.56

Finding the Fourth Proportional to 5,375.54, 7,420.59 and 3,136.56

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Solution

The fourth proportional to 5,375.54, 7,420.59 and 3,136.56 is: 4,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.54 : 7,420.59 = 3,136.56 : x
  2. Step 2: Convert to fraction form
    5,375.54/7,420.59 = 3,136.56/x
  3. Step 3: Cross multiply
    5,375.54x = 7,420.59 × 3,136.56
  4. Step 4: Simplify right side
    5,375.54x = 23,275,125.77
  5. Step 5: Solve for x
    x = 23,275,125.77/5,375.54
  6. Step 6: Final answer
    x = 4,329.82

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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.