Home / 1,054.14-1,581.25-274.17

Finding the Fourth Proportional to 1,054.14, 1,581.25 and 274.17

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Solution

The fourth proportional to 1,054.14, 1,581.25 and 274.17 is: 411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.14 : 1,581.25 = 274.17 : x
  2. Step 2: Convert to fraction form
    1,054.14/1,581.25 = 274.17/x
  3. Step 3: Cross multiply
    1,054.14x = 1,581.25 × 274.17
  4. Step 4: Simplify right side
    1,054.14x = 433,531.31
  5. Step 5: Solve for x
    x = 433,531.31/1,054.14
  6. Step 6: Final answer
    x = 411.27

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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.