Home / 3,145.98-4,341.20-1,819.77

Finding the Fourth Proportional to 3,145.98, 4,341.20 and 1,819.77

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Solution

The fourth proportional to 3,145.98, 4,341.20 and 1,819.77 is: 2,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.98 : 4,341.20 = 1,819.77 : x
  2. Step 2: Convert to fraction form
    3,145.98/4,341.20 = 1,819.77/x
  3. Step 3: Cross multiply
    3,145.98x = 4,341.20 × 1,819.77
  4. Step 4: Simplify right side
    3,145.98x = 7,899,960.15
  5. Step 5: Solve for x
    x = 7,899,960.15/3,145.98
  6. Step 6: Final answer
    x = 2,511.13

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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.