Home / 4,421.76-6,632.64-1,821.84

Finding the Fourth Proportional to 4,421.76, 6,632.64 and 1,821.84

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Solution

The fourth proportional to 4,421.76, 6,632.64 and 1,821.84 is: 2,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.76 : 6,632.64 = 1,821.84 : x
  2. Step 2: Convert to fraction form
    4,421.76/6,632.64 = 1,821.84/x
  3. Step 3: Cross multiply
    4,421.76x = 6,632.64 × 1,821.84
  4. Step 4: Simplify right side
    4,421.76x = 12,083,608.86
  5. Step 5: Solve for x
    x = 12,083,608.86/4,421.76
  6. Step 6: Final answer
    x = 2,732.76

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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.