Home / 10,581.58-15,872.13-2,790.36

Finding the Fourth Proportional to 10,581.58, 15,872.13 and 2,790.36

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Solution

The fourth proportional to 10,581.58, 15,872.13 and 2,790.36 is: 4,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.58 : 15,872.13 = 2,790.36 : x
  2. Step 2: Convert to fraction form
    10,581.58/15,872.13 = 2,790.36/x
  3. Step 3: Cross multiply
    10,581.58x = 15,872.13 × 2,790.36
  4. Step 4: Simplify right side
    10,581.58x = 44,288,956.67
  5. Step 5: Solve for x
    x = 44,288,956.67/10,581.58
  6. Step 6: Final answer
    x = 4,185.48

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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.