Home / 3,320.40-4,581.84-1,923

Finding the Fourth Proportional to 3,320.40, 4,581.84 and 1,923

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Solution

The fourth proportional to 3,320.40, 4,581.84 and 1,923 is: 2,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.40 : 4,581.84 = 1,923 : x
  2. Step 2: Convert to fraction form
    3,320.40/4,581.84 = 1,923/x
  3. Step 3: Cross multiply
    3,320.40x = 4,581.84 × 1,923
  4. Step 4: Simplify right side
    3,320.40x = 8,810,878.32
  5. Step 5: Solve for x
    x = 8,810,878.32/3,320.40
  6. Step 6: Final answer
    x = 2,653.56

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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.