Home / 1,324.52-1,827.86-800.85

Finding the Fourth Proportional to 1,324.52, 1,827.86 and 800.85

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Solution

The fourth proportional to 1,324.52, 1,827.86 and 800.85 is: 1,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.52 : 1,827.86 = 800.85 : x
  2. Step 2: Convert to fraction form
    1,324.52/1,827.86 = 800.85/x
  3. Step 3: Cross multiply
    1,324.52x = 1,827.86 × 800.85
  4. Step 4: Simplify right side
    1,324.52x = 1,463,837.68
  5. Step 5: Solve for x
    x = 1,463,837.68/1,324.52
  6. Step 6: Final answer
    x = 1,105.19

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1.5x scale

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.