Home / 2,133.26-2,920.44-2,118.86

Finding the Fourth Proportional to 2,133.26, 2,920.44 and 2,118.86

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Solution

The fourth proportional to 2,133.26, 2,920.44 and 2,118.86 is: 2,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.26 : 2,920.44 = 2,118.86 : x
  2. Step 2: Convert to fraction form
    2,133.26/2,920.44 = 2,118.86/x
  3. Step 3: Cross multiply
    2,133.26x = 2,920.44 × 2,118.86
  4. Step 4: Simplify right side
    2,133.26x = 6,187,992.90
  5. Step 5: Solve for x
    x = 6,187,992.90/2,133.26
  6. Step 6: Final answer
    x = 2,900.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.