Home / 4,320.72-6,480.12-1,722.96

Finding the Fourth Proportional to 4,320.72, 6,480.12 and 1,722.96

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Solution

The fourth proportional to 4,320.72, 6,480.12 and 1,722.96 is: 2,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.72 : 6,480.12 = 1,722.96 : x
  2. Step 2: Convert to fraction form
    4,320.72/6,480.12 = 1,722.96/x
  3. Step 3: Cross multiply
    4,320.72x = 6,480.12 × 1,722.96
  4. Step 4: Simplify right side
    4,320.72x = 11,164,987.56
  5. Step 5: Solve for x
    x = 11,164,987.56/4,320.72
  6. Step 6: Final answer
    x = 2,584.06

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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.