Home / 7,542.68-10,408.80-4,185.41

Finding the Fourth Proportional to 7,542.68, 10,408.80 and 4,185.41

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Solution

The fourth proportional to 7,542.68, 10,408.80 and 4,185.41 is: 5,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.68 : 10,408.80 = 4,185.41 : x
  2. Step 2: Convert to fraction form
    7,542.68/10,408.80 = 4,185.41/x
  3. Step 3: Cross multiply
    7,542.68x = 10,408.80 × 4,185.41
  4. Step 4: Simplify right side
    7,542.68x = 43,565,043.56
  5. Step 5: Solve for x
    x = 43,565,043.56/7,542.68
  6. Step 6: Final answer
    x = 5,775.81

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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.