Home / 3,112.89-4,646.55-2,743.85

Finding the Fourth Proportional to 3,112.89, 4,646.55 and 2,743.85

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Solution

The fourth proportional to 3,112.89, 4,646.55 and 2,743.85 is: 4,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.89 : 4,646.55 = 2,743.85 : x
  2. Step 2: Convert to fraction form
    3,112.89/4,646.55 = 2,743.85/x
  3. Step 3: Cross multiply
    3,112.89x = 4,646.55 × 2,743.85
  4. Step 4: Simplify right side
    3,112.89x = 12,749,412.98
  5. Step 5: Solve for x
    x = 12,749,412.98/3,112.89
  6. Step 6: Final answer
    x = 4,095.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.