Home / 2,861.88-4,294.86-1,218.84

Finding the Fourth Proportional to 2,861.88, 4,294.86 and 1,218.84

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Solution

The fourth proportional to 2,861.88, 4,294.86 and 1,218.84 is: 1,829.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.88 : 4,294.86 = 1,218.84 : x
  2. Step 2: Convert to fraction form
    2,861.88/4,294.86 = 1,218.84/x
  3. Step 3: Cross multiply
    2,861.88x = 4,294.86 × 1,218.84
  4. Step 4: Simplify right side
    2,861.88x = 5,234,747.16
  5. Step 5: Solve for x
    x = 5,234,747.16/2,861.88
  6. Step 6: Final answer
    x = 1,829.13

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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.