Home / 4,509.20-6,765.96-1,878.68

Finding the Fourth Proportional to 4,509.20, 6,765.96 and 1,878.68

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Solution

The fourth proportional to 4,509.20, 6,765.96 and 1,878.68 is: 2,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.20 : 6,765.96 = 1,878.68 : x
  2. Step 2: Convert to fraction form
    4,509.20/6,765.96 = 1,878.68/x
  3. Step 3: Cross multiply
    4,509.20x = 6,765.96 × 1,878.68
  4. Step 4: Simplify right side
    4,509.20x = 12,711,073.73
  5. Step 5: Solve for x
    x = 12,711,073.73/4,509.20
  6. Step 6: Final answer
    x = 2,818.92

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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.