Home / 4,781.12-7,170.44-1,857.82

Finding the Fourth Proportional to 4,781.12, 7,170.44 and 1,857.82

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Solution

The fourth proportional to 4,781.12, 7,170.44 and 1,857.82 is: 2,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.12 : 7,170.44 = 1,857.82 : x
  2. Step 2: Convert to fraction form
    4,781.12/7,170.44 = 1,857.82/x
  3. Step 3: Cross multiply
    4,781.12x = 7,170.44 × 1,857.82
  4. Step 4: Simplify right side
    4,781.12x = 13,321,386.84
  5. Step 5: Solve for x
    x = 13,321,386.84/4,781.12
  6. Step 6: Final answer
    x = 2,786.25

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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.