Home / 4,928.80-7,393.92-1,642.36

Finding the Fourth Proportional to 4,928.80, 7,393.92 and 1,642.36

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Solution

The fourth proportional to 4,928.80, 7,393.92 and 1,642.36 is: 2,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.80 : 7,393.92 = 1,642.36 : x
  2. Step 2: Convert to fraction form
    4,928.80/7,393.92 = 1,642.36/x
  3. Step 3: Cross multiply
    4,928.80x = 7,393.92 × 1,642.36
  4. Step 4: Simplify right side
    4,928.80x = 12,143,478.45
  5. Step 5: Solve for x
    x = 12,143,478.45/4,928.80
  6. Step 6: Final answer
    x = 2,463.78

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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.