Home / 1,272.72-1,905.51-1,037.04

Finding the Fourth Proportional to 1,272.72, 1,905.51 and 1,037.04

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Solution

The fourth proportional to 1,272.72, 1,905.51 and 1,037.04 is: 1,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.72 : 1,905.51 = 1,037.04 : x
  2. Step 2: Convert to fraction form
    1,272.72/1,905.51 = 1,037.04/x
  3. Step 3: Cross multiply
    1,272.72x = 1,905.51 × 1,037.04
  4. Step 4: Simplify right side
    1,272.72x = 1,976,090.09
  5. Step 5: Solve for x
    x = 1,976,090.09/1,272.72
  6. Step 6: Final answer
    x = 1,552.65

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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.