Home / 5,919.36-8,879.20-1,536.72

Finding the Fourth Proportional to 5,919.36, 8,879.20 and 1,536.72

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Solution

The fourth proportional to 5,919.36, 8,879.20 and 1,536.72 is: 2,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.36 : 8,879.20 = 1,536.72 : x
  2. Step 2: Convert to fraction form
    5,919.36/8,879.20 = 1,536.72/x
  3. Step 3: Cross multiply
    5,919.36x = 8,879.20 × 1,536.72
  4. Step 4: Simplify right side
    5,919.36x = 13,644,844.22
  5. Step 5: Solve for x
    x = 13,644,844.22/5,919.36
  6. Step 6: Final answer
    x = 2,305.12

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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.