Home / 3,311.86-4,570.57-1,819.91

Finding the Fourth Proportional to 3,311.86, 4,570.57 and 1,819.91

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Solution

The fourth proportional to 3,311.86, 4,570.57 and 1,819.91 is: 2,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.86 : 4,570.57 = 1,819.91 : x
  2. Step 2: Convert to fraction form
    3,311.86/4,570.57 = 1,819.91/x
  3. Step 3: Cross multiply
    3,311.86x = 4,570.57 × 1,819.91
  4. Step 4: Simplify right side
    3,311.86x = 8,318,005.47
  5. Step 5: Solve for x
    x = 8,318,005.47/3,311.86
  6. Step 6: Final answer
    x = 2,511.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.