Home / 3,612.91-4,985.32-2,019.36

Finding the Fourth Proportional to 3,612.91, 4,985.32 and 2,019.36

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Solution

The fourth proportional to 3,612.91, 4,985.32 and 2,019.36 is: 2,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.91 : 4,985.32 = 2,019.36 : x
  2. Step 2: Convert to fraction form
    3,612.91/4,985.32 = 2,019.36/x
  3. Step 3: Cross multiply
    3,612.91x = 4,985.32 × 2,019.36
  4. Step 4: Simplify right side
    3,612.91x = 10,067,155.80
  5. Step 5: Solve for x
    x = 10,067,155.80/3,612.91
  6. Step 6: Final answer
    x = 2,786.44

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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.