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Finding the Fourth Proportional to 3,114.05, 4,671.63 and 892.77

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Solution

The fourth proportional to 3,114.05, 4,671.63 and 892.77 is: 1,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.05 : 4,671.63 = 892.77 : x
  2. Step 2: Convert to fraction form
    3,114.05/4,671.63 = 892.77/x
  3. Step 3: Cross multiply
    3,114.05x = 4,671.63 × 892.77
  4. Step 4: Simplify right side
    3,114.05x = 4,170,691.12
  5. Step 5: Solve for x
    x = 4,170,691.12/3,114.05
  6. Step 6: Final answer
    x = 1,339.32

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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.