Home / 2,438.35-3,659.65-2,161.33

Finding the Fourth Proportional to 2,438.35, 3,659.65 and 2,161.33

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Solution

The fourth proportional to 2,438.35, 3,659.65 and 2,161.33 is: 3,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.35 : 3,659.65 = 2,161.33 : x
  2. Step 2: Convert to fraction form
    2,438.35/3,659.65 = 2,161.33/x
  3. Step 3: Cross multiply
    2,438.35x = 3,659.65 × 2,161.33
  4. Step 4: Simplify right side
    2,438.35x = 7,909,696.78
  5. Step 5: Solve for x
    x = 7,909,696.78/2,438.35
  6. Step 6: Final answer
    x = 3,243.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.