Home / 3,118.30-4,677.44-2,141.44

Finding the Fourth Proportional to 3,118.30, 4,677.44 and 2,141.44

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Solution

The fourth proportional to 3,118.30, 4,677.44 and 2,141.44 is: 3,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.30 : 4,677.44 = 2,141.44 : x
  2. Step 2: Convert to fraction form
    3,118.30/4,677.44 = 2,141.44/x
  3. Step 3: Cross multiply
    3,118.30x = 4,677.44 × 2,141.44
  4. Step 4: Simplify right side
    3,118.30x = 10,016,457.11
  5. Step 5: Solve for x
    x = 10,016,457.11/3,118.30
  6. Step 6: Final answer
    x = 3,212.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.