Home / 3,077.13-4,246.43-1,679.88

Finding the Fourth Proportional to 3,077.13, 4,246.43 and 1,679.88

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Solution

The fourth proportional to 3,077.13, 4,246.43 and 1,679.88 is: 2,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.13 : 4,246.43 = 1,679.88 : x
  2. Step 2: Convert to fraction form
    3,077.13/4,246.43 = 1,679.88/x
  3. Step 3: Cross multiply
    3,077.13x = 4,246.43 × 1,679.88
  4. Step 4: Simplify right side
    3,077.13x = 7,133,475.80
  5. Step 5: Solve for x
    x = 7,133,475.80/3,077.13
  6. Step 6: Final answer
    x = 2,318.23

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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.