Home / 2,625.24-3,919.38-2,005.68

Finding the Fourth Proportional to 2,625.24, 3,919.38 and 2,005.68

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Solution

The fourth proportional to 2,625.24, 3,919.38 and 2,005.68 is: 2,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.24 : 3,919.38 = 2,005.68 : x
  2. Step 2: Convert to fraction form
    2,625.24/3,919.38 = 2,005.68/x
  3. Step 3: Cross multiply
    2,625.24x = 3,919.38 × 2,005.68
  4. Step 4: Simplify right side
    2,625.24x = 7,861,022.08
  5. Step 5: Solve for x
    x = 7,861,022.08/2,625.24
  6. Step 6: Final answer
    x = 2,994.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.