Home / 3,938.36-5,433.49-2,258.62

Finding the Fourth Proportional to 3,938.36, 5,433.49 and 2,258.62

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Solution

The fourth proportional to 3,938.36, 5,433.49 and 2,258.62 is: 3,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.36 : 5,433.49 = 2,258.62 : x
  2. Step 2: Convert to fraction form
    3,938.36/5,433.49 = 2,258.62/x
  3. Step 3: Cross multiply
    3,938.36x = 5,433.49 × 2,258.62
  4. Step 4: Simplify right side
    3,938.36x = 12,272,189.18
  5. Step 5: Solve for x
    x = 12,272,189.18/3,938.36
  6. Step 6: Final answer
    x = 3,116.07

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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.