Home / 1,272.04-1,740.30-1,266.58

Finding the Fourth Proportional to 1,272.04, 1,740.30 and 1,266.58

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Solution

The fourth proportional to 1,272.04, 1,740.30 and 1,266.58 is: 1,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.04 : 1,740.30 = 1,266.58 : x
  2. Step 2: Convert to fraction form
    1,272.04/1,740.30 = 1,266.58/x
  3. Step 3: Cross multiply
    1,272.04x = 1,740.30 × 1,266.58
  4. Step 4: Simplify right side
    1,272.04x = 2,204,229.17
  5. Step 5: Solve for x
    x = 2,204,229.17/1,272.04
  6. Step 6: Final answer
    x = 1,732.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.