Home / 3,994.20-5,509.63-2,499.51

Finding the Fourth Proportional to 3,994.20, 5,509.63 and 2,499.51

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Solution

The fourth proportional to 3,994.20, 5,509.63 and 2,499.51 is: 3,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.20 : 5,509.63 = 2,499.51 : x
  2. Step 2: Convert to fraction form
    3,994.20/5,509.63 = 2,499.51/x
  3. Step 3: Cross multiply
    3,994.20x = 5,509.63 × 2,499.51
  4. Step 4: Simplify right side
    3,994.20x = 13,771,399.07
  5. Step 5: Solve for x
    x = 13,771,399.07/3,994.20
  6. Step 6: Final answer
    x = 3,447.85

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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.