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Finding the Fourth Proportional to 2,836.12, 4,254.72 and 887.92

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Solution

The fourth proportional to 2,836.12, 4,254.72 and 887.92 is: 1,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.12 : 4,254.72 = 887.92 : x
  2. Step 2: Convert to fraction form
    2,836.12/4,254.72 = 887.92/x
  3. Step 3: Cross multiply
    2,836.12x = 4,254.72 × 887.92
  4. Step 4: Simplify right side
    2,836.12x = 3,777,850.98
  5. Step 5: Solve for x
    x = 3,777,850.98/2,836.12
  6. Step 6: Final answer
    x = 1,332.05

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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.