Home / 3,076.90-4,246.12-1,679.65

Finding the Fourth Proportional to 3,076.90, 4,246.12 and 1,679.65

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Solution

The fourth proportional to 3,076.90, 4,246.12 and 1,679.65 is: 2,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.90 : 4,246.12 = 1,679.65 : x
  2. Step 2: Convert to fraction form
    3,076.90/4,246.12 = 1,679.65/x
  3. Step 3: Cross multiply
    3,076.90x = 4,246.12 × 1,679.65
  4. Step 4: Simplify right side
    3,076.90x = 7,131,995.46
  5. Step 5: Solve for x
    x = 7,131,995.46/3,076.90
  6. Step 6: Final answer
    x = 2,317.92

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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.