Home / 3,619.98-4,999.66-2,439

Finding the Fourth Proportional to 3,619.98, 4,999.66 and 2,439

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Solution

The fourth proportional to 3,619.98, 4,999.66 and 2,439 is: 3,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.98 : 4,999.66 = 2,439 : x
  2. Step 2: Convert to fraction form
    3,619.98/4,999.66 = 2,439/x
  3. Step 3: Cross multiply
    3,619.98x = 4,999.66 × 2,439
  4. Step 4: Simplify right side
    3,619.98x = 12,194,164.64
  5. Step 5: Solve for x
    x = 12,194,164.64/3,619.98
  6. Step 6: Final answer
    x = 3,368.57

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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.