Home / 3,999.38-5,522.63-2,509.86

Finding the Fourth Proportional to 3,999.38, 5,522.63 and 2,509.86

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Solution

The fourth proportional to 3,999.38, 5,522.63 and 2,509.86 is: 3,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.38 : 5,522.63 = 2,509.86 : x
  2. Step 2: Convert to fraction form
    3,999.38/5,522.63 = 2,509.86/x
  3. Step 3: Cross multiply
    3,999.38x = 5,522.63 × 2,509.86
  4. Step 4: Simplify right side
    3,999.38x = 13,861,015.58
  5. Step 5: Solve for x
    x = 13,861,015.58/3,999.38
  6. Step 6: Final answer
    x = 3,465.80

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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.