Home / 1,272.34-1,752.33-1,181.62

Finding the Fourth Proportional to 1,272.34, 1,752.33 and 1,181.62

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Solution

The fourth proportional to 1,272.34, 1,752.33 and 1,181.62 is: 1,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.34 : 1,752.33 = 1,181.62 : x
  2. Step 2: Convert to fraction form
    1,272.34/1,752.33 = 1,181.62/x
  3. Step 3: Cross multiply
    1,272.34x = 1,752.33 × 1,181.62
  4. Step 4: Simplify right side
    1,272.34x = 2,070,588.17
  5. Step 5: Solve for x
    x = 2,070,588.17/1,272.34
  6. Step 6: Final answer
    x = 1,627.39

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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.