Home / 3,903.86-5,387.33-2,202.39

Finding the Fourth Proportional to 3,903.86, 5,387.33 and 2,202.39

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Solution

The fourth proportional to 3,903.86, 5,387.33 and 2,202.39 is: 3,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.86 : 5,387.33 = 2,202.39 : x
  2. Step 2: Convert to fraction form
    3,903.86/5,387.33 = 2,202.39/x
  3. Step 3: Cross multiply
    3,903.86x = 5,387.33 × 2,202.39
  4. Step 4: Simplify right side
    3,903.86x = 11,865,001.72
  5. Step 5: Solve for x
    x = 11,865,001.72/3,903.86
  6. Step 6: Final answer
    x = 3,039.30

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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.