Home / 3,849.87-5,312.48-2,170.83

Finding the Fourth Proportional to 3,849.87, 5,312.48 and 2,170.83

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Solution

The fourth proportional to 3,849.87, 5,312.48 and 2,170.83 is: 2,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.87 : 5,312.48 = 2,170.83 : x
  2. Step 2: Convert to fraction form
    3,849.87/5,312.48 = 2,170.83/x
  3. Step 3: Cross multiply
    3,849.87x = 5,312.48 × 2,170.83
  4. Step 4: Simplify right side
    3,849.87x = 11,532,480.10
  5. Step 5: Solve for x
    x = 11,532,480.10/3,849.87
  6. Step 6: Final answer
    x = 2,995.55

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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.