Home / 3,815.88-5,722.96-1,707.72

Finding the Fourth Proportional to 3,815.88, 5,722.96 and 1,707.72

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Solution

The fourth proportional to 3,815.88, 5,722.96 and 1,707.72 is: 2,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.88 : 5,722.96 = 1,707.72 : x
  2. Step 2: Convert to fraction form
    3,815.88/5,722.96 = 1,707.72/x
  3. Step 3: Cross multiply
    3,815.88x = 5,722.96 × 1,707.72
  4. Step 4: Simplify right side
    3,815.88x = 9,773,213.25
  5. Step 5: Solve for x
    x = 9,773,213.25/3,815.88
  6. Step 6: Final answer
    x = 2,561.20

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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.