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Finding the Fourth Proportional to 1,783.13, 2,673.66 and 550.21

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Solution

The fourth proportional to 1,783.13, 2,673.66 and 550.21 is: 824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.13 : 2,673.66 = 550.21 : x
  2. Step 2: Convert to fraction form
    1,783.13/2,673.66 = 550.21/x
  3. Step 3: Cross multiply
    1,783.13x = 2,673.66 × 550.21
  4. Step 4: Simplify right side
    1,783.13x = 1,471,069.16
  5. Step 5: Solve for x
    x = 1,471,069.16/1,783.13
  6. Step 6: Final answer
    x = 824.99

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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.