Home / 4,390.42-6,589.90-3,142.48

Finding the Fourth Proportional to 4,390.42, 6,589.90 and 3,142.48

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Solution

The fourth proportional to 4,390.42, 6,589.90 and 3,142.48 is: 4,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.42 : 6,589.90 = 3,142.48 : x
  2. Step 2: Convert to fraction form
    4,390.42/6,589.90 = 3,142.48/x
  3. Step 3: Cross multiply
    4,390.42x = 6,589.90 × 3,142.48
  4. Step 4: Simplify right side
    4,390.42x = 20,708,628.95
  5. Step 5: Solve for x
    x = 20,708,628.95/4,390.42
  6. Step 6: Final answer
    x = 4,716.78

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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.