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Finding the Fourth Proportional to 2,669.79, 3,684.78 and 1,550.64

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Solution

The fourth proportional to 2,669.79, 3,684.78 and 1,550.64 is: 2,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.79 : 3,684.78 = 1,550.64 : x
  2. Step 2: Convert to fraction form
    2,669.79/3,684.78 = 1,550.64/x
  3. Step 3: Cross multiply
    2,669.79x = 3,684.78 × 1,550.64
  4. Step 4: Simplify right side
    2,669.79x = 5,713,759.51
  5. Step 5: Solve for x
    x = 5,713,759.51/2,669.79
  6. Step 6: Final answer
    x = 2,140.15

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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.