Home / 3,721.84-5,582.40-1,381.84

Finding the Fourth Proportional to 3,721.84, 5,582.40 and 1,381.84

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Solution

The fourth proportional to 3,721.84, 5,582.40 and 1,381.84 is: 2,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.84 : 5,582.40 = 1,381.84 : x
  2. Step 2: Convert to fraction form
    3,721.84/5,582.40 = 1,381.84/x
  3. Step 3: Cross multiply
    3,721.84x = 5,582.40 × 1,381.84
  4. Step 4: Simplify right side
    3,721.84x = 7,713,983.62
  5. Step 5: Solve for x
    x = 7,713,983.62/3,721.84
  6. Step 6: Final answer
    x = 2,072.63

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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.