Home / 7,721.94-11,582.16-2,175.19

Finding the Fourth Proportional to 7,721.94, 11,582.16 and 2,175.19

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Solution

The fourth proportional to 7,721.94, 11,582.16 and 2,175.19 is: 3,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.94 : 11,582.16 = 2,175.19 : x
  2. Step 2: Convert to fraction form
    7,721.94/11,582.16 = 2,175.19/x
  3. Step 3: Cross multiply
    7,721.94x = 11,582.16 × 2,175.19
  4. Step 4: Simplify right side
    7,721.94x = 25,193,398.61
  5. Step 5: Solve for x
    x = 25,193,398.61/7,721.94
  6. Step 6: Final answer
    x = 3,262.58

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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.