Home / 5,231.94-7,220.52-2,874.51

Finding the Fourth Proportional to 5,231.94, 7,220.52 and 2,874.51

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Solution

The fourth proportional to 5,231.94, 7,220.52 and 2,874.51 is: 3,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.94 : 7,220.52 = 2,874.51 : x
  2. Step 2: Convert to fraction form
    5,231.94/7,220.52 = 2,874.51/x
  3. Step 3: Cross multiply
    5,231.94x = 7,220.52 × 2,874.51
  4. Step 4: Simplify right side
    5,231.94x = 20,755,456.95
  5. Step 5: Solve for x
    x = 20,755,456.95/5,231.94
  6. Step 6: Final answer
    x = 3,967.07

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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.