Home / 3,849.15-5,312.05-2,170.63

Finding the Fourth Proportional to 3,849.15, 5,312.05 and 2,170.63

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Solution

The fourth proportional to 3,849.15, 5,312.05 and 2,170.63 is: 2,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.15 : 5,312.05 = 2,170.63 : x
  2. Step 2: Convert to fraction form
    3,849.15/5,312.05 = 2,170.63/x
  3. Step 3: Cross multiply
    3,849.15x = 5,312.05 × 2,170.63
  4. Step 4: Simplify right side
    3,849.15x = 11,530,496.30
  5. Step 5: Solve for x
    x = 11,530,496.30/3,849.15
  6. Step 6: Final answer
    x = 2,995.59

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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.