Home / 3,903.90-5,381.19-3,194.70

Finding the Fourth Proportional to 3,903.90, 5,381.19 and 3,194.70

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Solution

The fourth proportional to 3,903.90, 5,381.19 and 3,194.70 is: 4,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.90 : 5,381.19 = 3,194.70 : x
  2. Step 2: Convert to fraction form
    3,903.90/5,381.19 = 3,194.70/x
  3. Step 3: Cross multiply
    3,903.90x = 5,381.19 × 3,194.70
  4. Step 4: Simplify right side
    3,903.90x = 17,191,287.69
  5. Step 5: Solve for x
    x = 17,191,287.69/3,903.90
  6. Step 6: Final answer
    x = 4,403.62

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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.