Home / 1,171.29-1,618.28-1,159.77

Finding the Fourth Proportional to 1,171.29, 1,618.28 and 1,159.77

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Solution

The fourth proportional to 1,171.29, 1,618.28 and 1,159.77 is: 1,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171.29 : 1,618.28 = 1,159.77 : x
  2. Step 2: Convert to fraction form
    1,171.29/1,618.28 = 1,159.77/x
  3. Step 3: Cross multiply
    1,171.29x = 1,618.28 × 1,159.77
  4. Step 4: Simplify right side
    1,171.29x = 1,876,843.74
  5. Step 5: Solve for x
    x = 1,876,843.74/1,171.29
  6. Step 6: Final answer
    x = 1,602.37

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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.