Home / 1,132.83-1,697.81-985.97

Finding the Fourth Proportional to 1,132.83, 1,697.81 and 985.97

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Solution

The fourth proportional to 1,132.83, 1,697.81 and 985.97 is: 1,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.83 : 1,697.81 = 985.97 : x
  2. Step 2: Convert to fraction form
    1,132.83/1,697.81 = 985.97/x
  3. Step 3: Cross multiply
    1,132.83x = 1,697.81 × 985.97
  4. Step 4: Simplify right side
    1,132.83x = 1,673,976.31
  5. Step 5: Solve for x
    x = 1,673,976.31/1,132.83
  6. Step 6: Final answer
    x = 1,477.69

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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.