Home / 3,809.05-5,258.40-3,605.56

Finding the Fourth Proportional to 3,809.05, 5,258.40 and 3,605.56

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Solution

The fourth proportional to 3,809.05, 5,258.40 and 3,605.56 is: 4,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.05 : 5,258.40 = 3,605.56 : x
  2. Step 2: Convert to fraction form
    3,809.05/5,258.40 = 3,605.56/x
  3. Step 3: Cross multiply
    3,809.05x = 5,258.40 × 3,605.56
  4. Step 4: Simplify right side
    3,809.05x = 18,959,476.70
  5. Step 5: Solve for x
    x = 18,959,476.70/3,809.05
  6. Step 6: Final answer
    x = 4,977.48

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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.