Home / 3,014.38-4,159.61-1,687.90

Finding the Fourth Proportional to 3,014.38, 4,159.61 and 1,687.90

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Solution

The fourth proportional to 3,014.38, 4,159.61 and 1,687.90 is: 2,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.38 : 4,159.61 = 1,687.90 : x
  2. Step 2: Convert to fraction form
    3,014.38/4,159.61 = 1,687.90/x
  3. Step 3: Cross multiply
    3,014.38x = 4,159.61 × 1,687.90
  4. Step 4: Simplify right side
    3,014.38x = 7,021,008.05
  5. Step 5: Solve for x
    x = 7,021,008.05/3,014.38
  6. Step 6: Final answer
    x = 2,329.17

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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.