Home / 2,789.46-3,849.08-1,670.17

Finding the Fourth Proportional to 2,789.46, 3,849.08 and 1,670.17

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Solution

The fourth proportional to 2,789.46, 3,849.08 and 1,670.17 is: 2,304.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.46 : 3,849.08 = 1,670.17 : x
  2. Step 2: Convert to fraction form
    2,789.46/3,849.08 = 1,670.17/x
  3. Step 3: Cross multiply
    2,789.46x = 3,849.08 × 1,670.17
  4. Step 4: Simplify right side
    2,789.46x = 6,428,617.94
  5. Step 5: Solve for x
    x = 6,428,617.94/2,789.46
  6. Step 6: Final answer
    x = 2,304.61

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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.