Home / 2,849.96-3,933.18-1,670.78

Finding the Fourth Proportional to 2,849.96, 3,933.18 and 1,670.78

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Solution

The fourth proportional to 2,849.96, 3,933.18 and 1,670.78 is: 2,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.96 : 3,933.18 = 1,670.78 : x
  2. Step 2: Convert to fraction form
    2,849.96/3,933.18 = 1,670.78/x
  3. Step 3: Cross multiply
    2,849.96x = 3,933.18 × 1,670.78
  4. Step 4: Simplify right side
    2,849.96x = 6,571,478.48
  5. Step 5: Solve for x
    x = 6,571,478.48/2,849.96
  6. Step 6: Final answer
    x = 2,305.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.