Home / 3,888.13-5,365.73-2,209.63

Finding the Fourth Proportional to 3,888.13, 5,365.73 and 2,209.63

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Solution

The fourth proportional to 3,888.13, 5,365.73 and 2,209.63 is: 3,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.13 : 5,365.73 = 2,209.63 : x
  2. Step 2: Convert to fraction form
    3,888.13/5,365.73 = 2,209.63/x
  3. Step 3: Cross multiply
    3,888.13x = 5,365.73 × 2,209.63
  4. Step 4: Simplify right side
    3,888.13x = 11,856,277.98
  5. Step 5: Solve for x
    x = 11,856,277.98/3,888.13
  6. Step 6: Final answer
    x = 3,049.35

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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.