Home / 3,145.93-4,341.34-1,819.76

Finding the Fourth Proportional to 3,145.93, 4,341.34 and 1,819.76

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Solution

The fourth proportional to 3,145.93, 4,341.34 and 1,819.76 is: 2,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.93 : 4,341.34 = 1,819.76 : x
  2. Step 2: Convert to fraction form
    3,145.93/4,341.34 = 1,819.76/x
  3. Step 3: Cross multiply
    3,145.93x = 4,341.34 × 1,819.76
  4. Step 4: Simplify right side
    3,145.93x = 7,900,196.88
  5. Step 5: Solve for x
    x = 7,900,196.88/3,145.93
  6. Step 6: Final answer
    x = 2,511.24

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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.