Home / 1,930.25-2,663.75-1,144.35

Finding the Fourth Proportional to 1,930.25, 2,663.75 and 1,144.35

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Solution

The fourth proportional to 1,930.25, 2,663.75 and 1,144.35 is: 1,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.25 : 2,663.75 = 1,144.35 : x
  2. Step 2: Convert to fraction form
    1,930.25/2,663.75 = 1,144.35/x
  3. Step 3: Cross multiply
    1,930.25x = 2,663.75 × 1,144.35
  4. Step 4: Simplify right side
    1,930.25x = 3,048,265.17
  5. Step 5: Solve for x
    x = 3,048,265.17/1,930.25
  6. Step 6: Final answer
    x = 1,579.21

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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.