Home / 2,805.15-4,204.62-1,160.79

Finding the Fourth Proportional to 2,805.15, 4,204.62 and 1,160.79

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Solution

The fourth proportional to 2,805.15, 4,204.62 and 1,160.79 is: 1,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.15 : 4,204.62 = 1,160.79 : x
  2. Step 2: Convert to fraction form
    2,805.15/4,204.62 = 1,160.79/x
  3. Step 3: Cross multiply
    2,805.15x = 4,204.62 × 1,160.79
  4. Step 4: Simplify right side
    2,805.15x = 4,880,680.85
  5. Step 5: Solve for x
    x = 4,880,680.85/2,805.15
  6. Step 6: Final answer
    x = 1,739.90

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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.