Home / 3,013.56-4,158-1,687.14

Finding the Fourth Proportional to 3,013.56, 4,158 and 1,687.14

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Solution

The fourth proportional to 3,013.56, 4,158 and 1,687.14 is: 2,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.56 : 4,158 = 1,687.14 : x
  2. Step 2: Convert to fraction form
    3,013.56/4,158 = 1,687.14/x
  3. Step 3: Cross multiply
    3,013.56x = 4,158 × 1,687.14
  4. Step 4: Simplify right side
    3,013.56x = 7,015,128.12
  5. Step 5: Solve for x
    x = 7,015,128.12/3,013.56
  6. Step 6: Final answer
    x = 2,327.85

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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.