Home / 3,947.36-5,921.03-3,706.78

Finding the Fourth Proportional to 3,947.36, 5,921.03 and 3,706.78

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Solution

The fourth proportional to 3,947.36, 5,921.03 and 3,706.78 is: 5,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.36 : 5,921.03 = 3,706.78 : x
  2. Step 2: Convert to fraction form
    3,947.36/5,921.03 = 3,706.78/x
  3. Step 3: Cross multiply
    3,947.36x = 5,921.03 × 3,706.78
  4. Step 4: Simplify right side
    3,947.36x = 21,947,955.58
  5. Step 5: Solve for x
    x = 21,947,955.58/3,947.36
  6. Step 6: Final answer
    x = 5,560.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.