Home / 4,449.76-6,669.43-1,815.62

Finding the Fourth Proportional to 4,449.76, 6,669.43 and 1,815.62

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Solution

The fourth proportional to 4,449.76, 6,669.43 and 1,815.62 is: 2,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,449.76 : 6,669.43 = 1,815.62 : x
  2. Step 2: Convert to fraction form
    4,449.76/6,669.43 = 1,815.62/x
  3. Step 3: Cross multiply
    4,449.76x = 6,669.43 × 1,815.62
  4. Step 4: Simplify right side
    4,449.76x = 12,109,141.42
  5. Step 5: Solve for x
    x = 12,109,141.42/4,449.76
  6. Step 6: Final answer
    x = 2,721.30

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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.