Home / 1,183.35-1,632.15-809.94

Finding the Fourth Proportional to 1,183.35, 1,632.15 and 809.94

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Solution

The fourth proportional to 1,183.35, 1,632.15 and 809.94 is: 1,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.35 : 1,632.15 = 809.94 : x
  2. Step 2: Convert to fraction form
    1,183.35/1,632.15 = 809.94/x
  3. Step 3: Cross multiply
    1,183.35x = 1,632.15 × 809.94
  4. Step 4: Simplify right side
    1,183.35x = 1,321,943.57
  5. Step 5: Solve for x
    x = 1,321,943.57/1,183.35
  6. Step 6: Final answer
    x = 1,117.12

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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.