Home / 7,721.36-11,582.04-3,821.84

Finding the Fourth Proportional to 7,721.36, 11,582.04 and 3,821.84

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Solution

The fourth proportional to 7,721.36, 11,582.04 and 3,821.84 is: 5,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.36 : 11,582.04 = 3,821.84 : x
  2. Step 2: Convert to fraction form
    7,721.36/11,582.04 = 3,821.84/x
  3. Step 3: Cross multiply
    7,721.36x = 11,582.04 × 3,821.84
  4. Step 4: Simplify right side
    7,721.36x = 44,264,703.75
  5. Step 5: Solve for x
    x = 44,264,703.75/7,721.36
  6. Step 6: Final answer
    x = 5,732.76

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Similar ratio
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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.