Home / 8,785.22-13,175.93-2,781.77

Finding the Fourth Proportional to 8,785.22, 13,175.93 and 2,781.77

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Solution

The fourth proportional to 8,785.22, 13,175.93 and 2,781.77 is: 4,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.22 : 13,175.93 = 2,781.77 : x
  2. Step 2: Convert to fraction form
    8,785.22/13,175.93 = 2,781.77/x
  3. Step 3: Cross multiply
    8,785.22x = 13,175.93 × 2,781.77
  4. Step 4: Simplify right side
    8,785.22x = 36,652,399.84
  5. Step 5: Solve for x
    x = 36,652,399.84/8,785.22
  6. Step 6: Final answer
    x = 4,172.05

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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.