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Finding the Fourth Proportional to 2,829.51, 4,243.94 and 881.55

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Solution

The fourth proportional to 2,829.51, 4,243.94 and 881.55 is: 1,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.51 : 4,243.94 = 881.55 : x
  2. Step 2: Convert to fraction form
    2,829.51/4,243.94 = 881.55/x
  3. Step 3: Cross multiply
    2,829.51x = 4,243.94 × 881.55
  4. Step 4: Simplify right side
    2,829.51x = 3,741,224.09
  5. Step 5: Solve for x
    x = 3,741,224.09/2,829.51
  6. Step 6: Final answer
    x = 1,322.22

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1.5x scale

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.