Home / 3,828.08-5,282.40-2,148.96

Finding the Fourth Proportional to 3,828.08, 5,282.40 and 2,148.96

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Solution

The fourth proportional to 3,828.08, 5,282.40 and 2,148.96 is: 2,965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.08 : 5,282.40 = 2,148.96 : x
  2. Step 2: Convert to fraction form
    3,828.08/5,282.40 = 2,148.96/x
  3. Step 3: Cross multiply
    3,828.08x = 5,282.40 × 2,148.96
  4. Step 4: Simplify right side
    3,828.08x = 11,351,666.30
  5. Step 5: Solve for x
    x = 11,351,666.30/3,828.08
  6. Step 6: Final answer
    x = 2,965.37

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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.