Home / 4,281.05-6,421.58-2,819.86

Finding the Fourth Proportional to 4,281.05, 6,421.58 and 2,819.86

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Solution

The fourth proportional to 4,281.05, 6,421.58 and 2,819.86 is: 4,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.05 : 6,421.58 = 2,819.86 : x
  2. Step 2: Convert to fraction form
    4,281.05/6,421.58 = 2,819.86/x
  3. Step 3: Cross multiply
    4,281.05x = 6,421.58 × 2,819.86
  4. Step 4: Simplify right side
    4,281.05x = 18,107,973.12
  5. Step 5: Solve for x
    x = 18,107,973.12/4,281.05
  6. Step 6: Final answer
    x = 4,229.79

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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.