Home / 3,849.48-5,312.79-2,171.25

Finding the Fourth Proportional to 3,849.48, 5,312.79 and 2,171.25

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Solution

The fourth proportional to 3,849.48, 5,312.79 and 2,171.25 is: 2,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.48 : 5,312.79 = 2,171.25 : x
  2. Step 2: Convert to fraction form
    3,849.48/5,312.79 = 2,171.25/x
  3. Step 3: Cross multiply
    3,849.48x = 5,312.79 × 2,171.25
  4. Step 4: Simplify right side
    3,849.48x = 11,535,395.29
  5. Step 5: Solve for x
    x = 11,535,395.29/3,849.48
  6. Step 6: Final answer
    x = 2,996.61

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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.