Home / 4,213.95-6,319.53-1,992.43

Finding the Fourth Proportional to 4,213.95, 6,319.53 and 1,992.43

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Solution

The fourth proportional to 4,213.95, 6,319.53 and 1,992.43 is: 2,987.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.95 : 6,319.53 = 1,992.43 : x
  2. Step 2: Convert to fraction form
    4,213.95/6,319.53 = 1,992.43/x
  3. Step 3: Cross multiply
    4,213.95x = 6,319.53 × 1,992.43
  4. Step 4: Simplify right side
    4,213.95x = 12,591,221.16
  5. Step 5: Solve for x
    x = 12,591,221.16/4,213.95
  6. Step 6: Final answer
    x = 2,987.99

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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.