Home / 3,619.02-4,992.66-2,778.24

Finding the Fourth Proportional to 3,619.02, 4,992.66 and 2,778.24

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Solution

The fourth proportional to 3,619.02, 4,992.66 and 2,778.24 is: 3,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.02 : 4,992.66 = 2,778.24 : x
  2. Step 2: Convert to fraction form
    3,619.02/4,992.66 = 2,778.24/x
  3. Step 3: Cross multiply
    3,619.02x = 4,992.66 × 2,778.24
  4. Step 4: Simplify right side
    3,619.02x = 13,870,807.72
  5. Step 5: Solve for x
    x = 13,870,807.72/3,619.02
  6. Step 6: Final answer
    x = 3,832.75

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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.