Home / 2,811.58-4,218.62-1,511.53

Finding the Fourth Proportional to 2,811.58, 4,218.62 and 1,511.53

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Solution

The fourth proportional to 2,811.58, 4,218.62 and 1,511.53 is: 2,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.58 : 4,218.62 = 1,511.53 : x
  2. Step 2: Convert to fraction form
    2,811.58/4,218.62 = 1,511.53/x
  3. Step 3: Cross multiply
    2,811.58x = 4,218.62 × 1,511.53
  4. Step 4: Simplify right side
    2,811.58x = 6,376,552.58
  5. Step 5: Solve for x
    x = 6,376,552.58/2,811.58
  6. Step 6: Final answer
    x = 2,267.96

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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.