Home / 3,620.32-4,990.80-2,674.72

Finding the Fourth Proportional to 3,620.32, 4,990.80 and 2,674.72

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Solution

The fourth proportional to 3,620.32, 4,990.80 and 2,674.72 is: 3,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.32 : 4,990.80 = 2,674.72 : x
  2. Step 2: Convert to fraction form
    3,620.32/4,990.80 = 2,674.72/x
  3. Step 3: Cross multiply
    3,620.32x = 4,990.80 × 2,674.72
  4. Step 4: Simplify right side
    3,620.32x = 13,348,992.58
  5. Step 5: Solve for x
    x = 13,348,992.58/3,620.32
  6. Step 6: Final answer
    x = 3,687.24

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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.