Home / 1,536.03-2,119.73-872.89

Finding the Fourth Proportional to 1,536.03, 2,119.73 and 872.89

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Solution

The fourth proportional to 1,536.03, 2,119.73 and 872.89 is: 1,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.03 : 2,119.73 = 872.89 : x
  2. Step 2: Convert to fraction form
    1,536.03/2,119.73 = 872.89/x
  3. Step 3: Cross multiply
    1,536.03x = 2,119.73 × 872.89
  4. Step 4: Simplify right side
    1,536.03x = 1,850,284.73
  5. Step 5: Solve for x
    x = 1,850,284.73/1,536.03
  6. Step 6: Final answer
    x = 1,204.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.