Home / 3,947.70-5,921.31-1,482.32

Finding the Fourth Proportional to 3,947.70, 5,921.31 and 1,482.32

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Solution

The fourth proportional to 3,947.70, 5,921.31 and 1,482.32 is: 2,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.70 : 5,921.31 = 1,482.32 : x
  2. Step 2: Convert to fraction form
    3,947.70/5,921.31 = 1,482.32/x
  3. Step 3: Cross multiply
    3,947.70x = 5,921.31 × 1,482.32
  4. Step 4: Simplify right side
    3,947.70x = 8,777,246.63
  5. Step 5: Solve for x
    x = 8,777,246.63/3,947.70
  6. Step 6: Final answer
    x = 2,223.38

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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.