Home / 3,721.96-5,582.94-1,415.08

Finding the Fourth Proportional to 3,721.96, 5,582.94 and 1,415.08

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Solution

The fourth proportional to 3,721.96, 5,582.94 and 1,415.08 is: 2,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.96 : 5,582.94 = 1,415.08 : x
  2. Step 2: Convert to fraction form
    3,721.96/5,582.94 = 1,415.08/x
  3. Step 3: Cross multiply
    3,721.96x = 5,582.94 × 1,415.08
  4. Step 4: Simplify right side
    3,721.96x = 7,900,306.74
  5. Step 5: Solve for x
    x = 7,900,306.74/3,721.96
  6. Step 6: Final answer
    x = 2,122.62

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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.