Home / 3,938.85-5,434.56-2,237.34

Finding the Fourth Proportional to 3,938.85, 5,434.56 and 2,237.34

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Solution

The fourth proportional to 3,938.85, 5,434.56 and 2,237.34 is: 3,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.85 : 5,434.56 = 2,237.34 : x
  2. Step 2: Convert to fraction form
    3,938.85/5,434.56 = 2,237.34/x
  3. Step 3: Cross multiply
    3,938.85x = 5,434.56 × 2,237.34
  4. Step 4: Simplify right side
    3,938.85x = 12,158,958.47
  5. Step 5: Solve for x
    x = 12,158,958.47/3,938.85
  6. Step 6: Final answer
    x = 3,086.93

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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.