Home / 1,144.26-1,579.05-646.95

Finding the Fourth Proportional to 1,144.26, 1,579.05 and 646.95

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Solution

The fourth proportional to 1,144.26, 1,579.05 and 646.95 is: 892.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.26 : 1,579.05 = 646.95 : x
  2. Step 2: Convert to fraction form
    1,144.26/1,579.05 = 646.95/x
  3. Step 3: Cross multiply
    1,144.26x = 1,579.05 × 646.95
  4. Step 4: Simplify right side
    1,144.26x = 1,021,566.40
  5. Step 5: Solve for x
    x = 1,021,566.40/1,144.26
  6. Step 6: Final answer
    x = 892.77

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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.