Home / 3,189.61-4,777.48-1,542.69

Finding the Fourth Proportional to 3,189.61, 4,777.48 and 1,542.69

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Solution

The fourth proportional to 3,189.61, 4,777.48 and 1,542.69 is: 2,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.61 : 4,777.48 = 1,542.69 : x
  2. Step 2: Convert to fraction form
    3,189.61/4,777.48 = 1,542.69/x
  3. Step 3: Cross multiply
    3,189.61x = 4,777.48 × 1,542.69
  4. Step 4: Simplify right side
    3,189.61x = 7,370,170.62
  5. Step 5: Solve for x
    x = 7,370,170.62/3,189.61
  6. Step 6: Final answer
    x = 2,310.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.