Home / 3,619.75-4,999.58-2,438.77

Finding the Fourth Proportional to 3,619.75, 4,999.58 and 2,438.77

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Solution

The fourth proportional to 3,619.75, 4,999.58 and 2,438.77 is: 3,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.75 : 4,999.58 = 2,438.77 : x
  2. Step 2: Convert to fraction form
    3,619.75/4,999.58 = 2,438.77/x
  3. Step 3: Cross multiply
    3,619.75x = 4,999.58 × 2,438.77
  4. Step 4: Simplify right side
    3,619.75x = 12,192,825.72
  5. Step 5: Solve for x
    x = 12,192,825.72/3,619.75
  6. Step 6: Final answer
    x = 3,368.42

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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.