Home / 3,145.92-4,341.38-1,819.62

Finding the Fourth Proportional to 3,145.92, 4,341.38 and 1,819.62

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Solution

The fourth proportional to 3,145.92, 4,341.38 and 1,819.62 is: 2,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.92 : 4,341.38 = 1,819.62 : x
  2. Step 2: Convert to fraction form
    3,145.92/4,341.38 = 1,819.62/x
  3. Step 3: Cross multiply
    3,145.92x = 4,341.38 × 1,819.62
  4. Step 4: Simplify right side
    3,145.92x = 7,899,652.78
  5. Step 5: Solve for x
    x = 7,899,652.78/3,145.92
  6. Step 6: Final answer
    x = 2,511.08

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1.5x scale

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.